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	<title>Комментарии: Интересные логические задачи</title>
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		<title>Автор: Administrator</title>
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		<pubDate>Fri, 04 Apr 2008 11:50:03 +0000</pubDate>
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		<description>&lt;h1&gt;Решение задачи Эйнштейна с помощью SQL&lt;/h1&gt;

Эйнштейн составил эту логическую задачу в начале 20-го века. Он утверждал, что 98 % населения не смогут ее решить. Проверим? 

Исходные данные:  
1. Есть 5 домов, каждый разного цвета.  
2. В каждом доме живёт один человек, отличающийся от соседнего по национальности: немец, англичанин, швед, датчанин и норвежец.  
3. Каждый пьёт только один определённый напиток, курит определённую марку сигарет и держит определённое животное.  
4. Никто из пяти человек не пьёт одинаковые с другими напитки, не курит одинаковые сигареты и не держит одинаковое животное.  
 
Далее: 
&lt;ul&gt;
	&lt;li&gt;Англичанин живёт в красном доме.  &lt;/li&gt;

	&lt;li&gt;Швед держит собаку.  &lt;/li&gt;

	&lt;li&gt;Датчанин пьёт чай.  &lt;/li&gt;

	&lt;li&gt;Зелёный дом стоит слева от белого, рядом.  &lt;/li&gt;

	&lt;li&gt;Жилец зелёного дома пьёт кофе.  &lt;/li&gt;

	&lt;li&gt;Человек, который курит &quot;Pall Mall&quot;, держит птицу.  &lt;/li&gt;

	&lt;li&gt;Жилец из среднего дома пьёт молоко.  &lt;/li&gt;

	&lt;li&gt;Жилец из желтого дома курит &quot;Dunhill&quot;.  &lt;/li&gt;

	&lt;li&gt;Норвежец живёт в первом доме.  &lt;/li&gt;

	&lt;li&gt;Курильщик &quot;Marlboro&quot; живет около того, кто держит кошку.  &lt;/li&gt;

	&lt;li&gt;Человек, который содержит лошадь, живёт около того, кто курит &quot;Dunhill&quot;.  &lt;/li&gt;

	&lt;li&gt;Курильщик сигарет &quot;Winfield&quot; пьёт пиво.  &lt;/li&gt;

	&lt;li&gt;Норвежец живёт около голубого дома.  &lt;/li&gt;

	&lt;li&gt;Немец курит &quot;Rothmans&quot;  &lt;/li&gt;

	&lt;li&gt;Курильщик &quot;Marlboro&quot; живёт по соседству с человеком, который пьёт воду.&lt;/li&gt;
&lt;/ul&gt;



Вопрос: Определите, кто из них держит рыбок?




&lt;blockquote&gt;-- сначала заводим в таблички исходные данные

set nocount on 
declare @sig table(sig varchar(10)) -- сигареты 
declare @color table(col varchar(10)) -- цвета домов 
declare @drink table(dri varchar(10)) -- напитки 
declare @anim table(ani varchar(10)) -- животные 
declare @nats table(nat varchar(10)) -- национальности 

insert @sig 
select &#039;Pall Mall&#039; union select &#039;Dunhill&#039; union select &#039;Marlboro&#039; union select &#039;Winfield&#039; union select &#039;Rothmans&#039; 

insert @color 
select &#039;red&#039; union select &#039;green&#039; union select &#039;white&#039; union select &#039;blue&#039; union select &#039;yellow&#039; 

insert @drink 
select &#039;tea&#039; union select &#039;beer&#039; union select &#039;cofe&#039; union select &#039;milk&#039; union select &#039;water&#039; 

insert @anim 
select &#039;fish&#039; union select &#039;dog&#039; union select &#039;cat&#039; union select &#039;horse&#039; union select &#039;bird&#039; 

insert @nats 
select &#039;eng&#039; union select &#039;norv&#039; union select &#039;shved&#039; union select &#039;dat&#039; union select &#039;nem&#039; 

--собственно сам запрос 

select * from @sig s1 ,@color c1 , @drink d1 , @anim a1, @nats n1, 
@sig s2 ,@color c2 , @drink d2 , @anim a2, @nats n2, 
@sig s3 ,@color c3 , @drink d3 , @anim a3, @nats n3, 
@sig s4 ,@color c4 , @drink d4 , @anim a4, @nats n4, 
@sig s5 ,@color c5 , @drink d5 , @anim a5, @nats n5 
where 
s1.sig&lt;&gt;s2.sig and s1.sig&lt;&gt;s3.sig and s1.sig&lt;&gt;s4.sig and s1.sig&lt;&gt;s5.sig 
and s2.sig&lt;&gt;s3.sig and s2.sig&lt;&gt;s4.sig and s2.sig&lt;&gt;s5.sig 
and s3.sig&lt;&gt;s4.sig and s3.sig&lt;&gt;s5.sig 
and s4.sig&lt;&gt;s5.sig 
and 
c1.col&lt;&gt;c2.col and c1.col&lt;&gt;c3.col and c1.col&lt;&gt;c4.col and c1.col&lt;&gt;c5.col 
and c2.col&lt;&gt;c3.col and c2.col&lt;&gt;c4.col and c2.col&lt;&gt;c5.col 
and c3.col&lt;&gt;c4.col and c3.col&lt;&gt;c5.col 
and c4.col&lt;&gt;c5.col 
and 
d1.dri&lt;&gt;d2.dri and d1.dri&lt;&gt;d3.dri and d1.dri&lt;&gt;d4.dri and d1.dri&lt;&gt;d5.dri 
and d2.dri&lt;&gt;d3.dri and d2.dri&lt;&gt;d4.dri and d2.dri&lt;&gt;d5.dri 
and d3.dri&lt;&gt;d4.dri and d3.dri&lt;&gt;d5.dri 
and d4.dri&lt;&gt;d5.dri 
and 
a1.ani&lt;&gt;a2.ani and a1.ani&lt;&gt;a3.ani and a1.ani&lt;&gt;a4.ani and a1.ani&lt;&gt;a5.ani 
and a2.ani&lt;&gt;a3.ani and a2.ani&lt;&gt;a4.ani and a2.ani&lt;&gt;a5.ani 
and a3.ani&lt;&gt;a4.ani and a3.ani&lt;&gt;a5.ani 
and a4.ani&lt;&gt;a5.ani 
and 
n1.nat&lt;&gt;n2.nat and n1.nat&lt;&gt;n3.nat and n1.nat&lt;&gt;n4.nat and n1.nat&lt;&gt;n5.nat 
and n2.nat&lt;&gt;n3.nat and n2.nat&lt;&gt;n4.nat and n2.nat&lt;&gt;n5.nat 
and n3.nat&lt;&gt;n4.nat and n3.nat&lt;&gt;n5.nat 
and n4.nat&lt;&gt;n5.nat 
and 
( (n1.nat=&#039;eng&#039; and c1.col=&#039;red&#039;) 
or (n2.nat=&#039;eng&#039; and c2.col=&#039;red&#039;) 
or (n3.nat=&#039;eng&#039; and c3.col=&#039;red&#039;) 
or (n4.nat=&#039;eng&#039; and c4.col=&#039;red&#039;) 
or (n5.nat=&#039;eng&#039; and c5.col=&#039;red&#039;) ) -- 1 
and ( (n1.nat=&#039;shved&#039; and a1.ani=&#039;dog&#039;) 
or (n2.nat=&#039;shved&#039; and a2.ani=&#039;dog&#039;) 
or (n3.nat=&#039;shved&#039; and a3.ani=&#039;dog&#039;) 
or (n4.nat=&#039;shved&#039; and a4.ani=&#039;dog&#039;) 
or (n5.nat=&#039;shved&#039; and a5.ani=&#039;dog&#039;) ) --2 
and ( (n1.nat=&#039;dat&#039; and d1.dri=&#039;tea&#039;) 
or (n2.nat=&#039;dat&#039; and d2.dri=&#039;tea&#039;) 
or (n3.nat=&#039;dat&#039; and d3.dri=&#039;tea&#039;) 
or (n4.nat=&#039;dat&#039; and d4.dri=&#039;tea&#039;) 
or (n5.nat=&#039;dat&#039; and d5.dri=&#039;tea&#039;) ) -- 3 
and ( (c1.col=&#039;green&#039; and c2.col=&#039;white&#039;) 
or (c2.col=&#039;green&#039; and c3.col=&#039;white&#039;) 
or (c3.col=&#039;green&#039; and c4.col=&#039;white&#039;) 
or (c4.col=&#039;green&#039; and c5.col=&#039;white&#039;) ) -- 4 
and ( (c1.col=&#039;green&#039; and d1.dri=&#039;cofe&#039;) 
or (c2.col=&#039;green&#039; and d2.dri=&#039;cofe&#039;) 
or (c3.col=&#039;green&#039; and d3.dri=&#039;cofe&#039;) 
or (c4.col=&#039;green&#039; and d4.dri=&#039;cofe&#039;) 
or (c5.col=&#039;green&#039; and d5.dri=&#039;cofe&#039;) ) -- 5 
and ( (s1.sig=&#039;Pall Mall&#039; and a1.ani=&#039;bird&#039;) 
or (s2.sig=&#039;Pall Mall&#039; and a2.ani=&#039;bird&#039;) 
or (s3.sig=&#039;Pall Mall&#039; and a3.ani=&#039;bird&#039;) 
or (s4.sig=&#039;Pall Mall&#039; and a4.ani=&#039;bird&#039;) 
or (s5.sig=&#039;Pall Mall&#039; and a5.ani=&#039;bird&#039;) ) -- 6 
and (d3.dri=&#039;milk&#039;) -- 7 
and ( (s1.sig=&#039;Dunhill&#039; and c1.col=&#039;yellow&#039;) 
or (s2.sig=&#039;Dunhill&#039; and c2.col=&#039;yellow&#039;) 
or (s3.sig=&#039;Dunhill&#039; and c3.col=&#039;yellow&#039;) 
or (s4.sig=&#039;Dunhill&#039; and c4.col=&#039;yellow&#039;) 
or (s5.sig=&#039;Dunhill&#039; and c5.col=&#039;yellow&#039;) ) -- 8 
and (n1.nat=&#039;norv&#039;) -- 9 
and ( (s1.sig=&#039;Marlboro&#039; and &#039;cat&#039;=a2.ani) 
or (s2.sig=&#039;Marlboro&#039; and &#039;cat&#039; in (a1.ani, a3.ani)) 
or (s3.sig=&#039;Marlboro&#039; and &#039;cat&#039; in (a2.ani, a4.ani)) 
or (s4.sig=&#039;Marlboro&#039; and &#039;cat&#039; in (a3.ani, a5.ani)) 
or (s5.sig=&#039;Marlboro&#039; and &#039;cat&#039;=a5.ani)) -- 10 
and ( (s1.sig=&#039;Dunhill&#039; and &#039;horse&#039;=a2.ani) 
or (s2.sig=&#039;Dunhill&#039; and &#039;horse&#039; in (a1.ani, a3.ani)) 
or (s3.sig=&#039;Dunhill&#039; and &#039;horse&#039; in (a2.ani, a4.ani)) 
or (s4.sig=&#039;Dunhill&#039; and &#039;horse&#039; in (a3.ani, a5.ani)) 
or (s5.sig=&#039;Dunhill&#039; and &#039;horse&#039;=a5.ani)) -- 11 
and ( (s1.sig=&#039;Winfield&#039; and d1.dri=&#039;beer&#039;) 
or (s2.sig=&#039;Winfield&#039; and d2.dri=&#039;beer&#039;) 
or (s3.sig=&#039;Winfield&#039; and d3.dri=&#039;beer&#039;) 
or (s4.sig=&#039;Winfield&#039; and d4.dri=&#039;beer&#039;) 
or (s5.sig=&#039;Winfield&#039; and d5.dri=&#039;beer&#039;) ) -- 12 
and ( (n1.nat=&#039;norv&#039; and &#039;blue&#039;=c2.col) 
or (n2.nat=&#039;norv&#039; and &#039;blue&#039; in (c1.col, c3.col)) 
or (n3.nat=&#039;norv&#039; and &#039;blue&#039; in (c2.col, c4.col)) 
or (n4.nat=&#039;norv&#039; and &#039;blue&#039; in (c3.col, c5.col)) 
or (n5.nat=&#039;norv&#039; and &#039;blue&#039;=c5.col)) -- 13 
and ( (s1.sig=&#039;Rothmans&#039; and n1.nat=&#039;nem&#039;) 
or (s2.sig=&#039;Rothmans&#039; and n2.nat=&#039;nem&#039;) 
or (s3.sig=&#039;Rothmans&#039; and n3.nat=&#039;nem&#039;) 
or (s4.sig=&#039;Rothmans&#039; and n4.nat=&#039;nem&#039;) 
or (s5.sig=&#039;Rothmans&#039; and n5.nat=&#039;nem&#039;)) -- 14 
and ( (s1.sig=&#039;Marlboro&#039; and &#039;water&#039;=d2.dri) 
or (s2.sig=&#039;Marlboro&#039; and &#039;water&#039; in (d1.dri, d3.dri)) 
or (s3.sig=&#039;Marlboro&#039; and &#039;water&#039; in (d2.dri, d4.dri)) 
or (s4.sig=&#039;Marlboro&#039; and &#039;water&#039; in (d3.dri, d5.dri)) 
or (s5.sig=&#039;Marlboro&#039; and &#039;water&#039;=d5.dri)) -- 15&lt;/blockquote&gt;

</description>
		<content:encoded><![CDATA[<h1>Решение задачи Эйнштейна с помощью SQL</h1>
<p>Эйнштейн составил эту логическую задачу в начале 20-го века. Он утверждал, что 98 % населения не смогут ее решить. Проверим? </p>
<p>Исходные данные:<br />
1. Есть 5 домов, каждый разного цвета.<br />
2. В каждом доме живёт один человек, отличающийся от соседнего по национальности: немец, англичанин, швед, датчанин и норвежец.<br />
3. Каждый пьёт только один определённый напиток, курит определённую марку сигарет и держит определённое животное.<br />
4. Никто из пяти человек не пьёт одинаковые с другими напитки, не курит одинаковые сигареты и не держит одинаковое животное.  </p>
<p>Далее: </p>
<ul>
<li>Англичанин живёт в красном доме.  </li>
<li>Швед держит собаку.  </li>
<li>Датчанин пьёт чай.  </li>
<li>Зелёный дом стоит слева от белого, рядом.  </li>
<li>Жилец зелёного дома пьёт кофе.  </li>
<li>Человек, который курит &laquo;Pall Mall&raquo;, держит птицу.  </li>
<li>Жилец из среднего дома пьёт молоко.  </li>
<li>Жилец из желтого дома курит &laquo;Dunhill&raquo;.  </li>
<li>Норвежец живёт в первом доме.  </li>
<li>Курильщик &laquo;Marlboro&raquo; живет около того, кто держит кошку.  </li>
<li>Человек, который содержит лошадь, живёт около того, кто курит &laquo;Dunhill&raquo;.  </li>
<li>Курильщик сигарет &laquo;Winfield&raquo; пьёт пиво.  </li>
<li>Норвежец живёт около голубого дома.  </li>
<li>Немец курит &laquo;Rothmans&raquo;  </li>
<li>Курильщик &laquo;Marlboro&raquo; живёт по соседству с человеком, который пьёт воду.</li>
</ul>
<p>Вопрос: Определите, кто из них держит рыбок?</p>
<blockquote><p>&#8211; сначала заводим в таблички исходные данные</p>
<p>set nocount on<br />
declare @sig table(sig varchar(10)) &#8212; сигареты<br />
declare @color table(col varchar(10)) &#8212; цвета домов<br />
declare @drink table(dri varchar(10)) &#8212; напитки<br />
declare @anim table(ani varchar(10)) &#8212; животные<br />
declare @nats table(nat varchar(10)) &#8212; национальности </p>
<p>insert @sig<br />
select &#8216;Pall Mall&#8217; union select &#8216;Dunhill&#8217; union select &#8216;Marlboro&#8217; union select &#8216;Winfield&#8217; union select &#8216;Rothmans&#8217; </p>
<p>insert @color<br />
select &#8216;red&#8217; union select &#8216;green&#8217; union select &#8216;white&#8217; union select &#8216;blue&#8217; union select &#8216;yellow&#8217; </p>
<p>insert @drink<br />
select &#8216;tea&#8217; union select &#8216;beer&#8217; union select &#8216;cofe&#8217; union select &#8216;milk&#8217; union select &#8216;water&#8217; </p>
<p>insert @anim<br />
select &#8216;fish&#8217; union select &#8216;dog&#8217; union select &#8216;cat&#8217; union select &#8216;horse&#8217; union select &#8216;bird&#8217; </p>
<p>insert @nats<br />
select &#8216;eng&#8217; union select &#8216;norv&#8217; union select &#8216;shved&#8217; union select &#8216;dat&#8217; union select &#8216;nem&#8217; </p>
<p>&#8211;собственно сам запрос </p>
<p>select * from @sig s1 ,@color c1 , @drink d1 , @anim a1, @nats n1,<br />
@sig s2 ,@color c2 , @drink d2 , @anim a2, @nats n2,<br />
@sig s3 ,@color c3 , @drink d3 , @anim a3, @nats n3,<br />
@sig s4 ,@color c4 , @drink d4 , @anim a4, @nats n4,<br />
@sig s5 ,@color c5 , @drink d5 , @anim a5, @nats n5<br />
where<br />
s1.sig<>s2.sig and s1.sig<>s3.sig and s1.sig<>s4.sig and s1.sig<>s5.sig<br />
and s2.sig<>s3.sig and s2.sig<>s4.sig and s2.sig<>s5.sig<br />
and s3.sig<>s4.sig and s3.sig<>s5.sig<br />
and s4.sig<>s5.sig<br />
and<br />
c1.col<>c2.col and c1.col<>c3.col and c1.col<>c4.col and c1.col<>c5.col<br />
and c2.col<>c3.col and c2.col<>c4.col and c2.col<>c5.col<br />
and c3.col<>c4.col and c3.col<>c5.col<br />
and c4.col<>c5.col<br />
and<br />
d1.dri<>d2.dri and d1.dri<>d3.dri and d1.dri<>d4.dri and d1.dri<>d5.dri<br />
and d2.dri<>d3.dri and d2.dri<>d4.dri and d2.dri<>d5.dri<br />
and d3.dri<>d4.dri and d3.dri<>d5.dri<br />
and d4.dri<>d5.dri<br />
and<br />
a1.ani<>a2.ani and a1.ani<>a3.ani and a1.ani<>a4.ani and a1.ani<>a5.ani<br />
and a2.ani<>a3.ani and a2.ani<>a4.ani and a2.ani<>a5.ani<br />
and a3.ani<>a4.ani and a3.ani<>a5.ani<br />
and a4.ani<>a5.ani<br />
and<br />
n1.nat<>n2.nat and n1.nat<>n3.nat and n1.nat<>n4.nat and n1.nat<>n5.nat<br />
and n2.nat<>n3.nat and n2.nat<>n4.nat and n2.nat<>n5.nat<br />
and n3.nat<>n4.nat and n3.nat<>n5.nat<br />
and n4.nat<>n5.nat<br />
and<br />
( (n1.nat=&#8217;eng&#8217; and c1.col=&#8217;red&#8217;)<br />
or (n2.nat=&#8217;eng&#8217; and c2.col=&#8217;red&#8217;)<br />
or (n3.nat=&#8217;eng&#8217; and c3.col=&#8217;red&#8217;)<br />
or (n4.nat=&#8217;eng&#8217; and c4.col=&#8217;red&#8217;)<br />
or (n5.nat=&#8217;eng&#8217; and c5.col=&#8217;red&#8217;) ) &#8212; 1<br />
and ( (n1.nat=&#8217;shved&#8217; and a1.ani=&#8217;dog&#8217;)<br />
or (n2.nat=&#8217;shved&#8217; and a2.ani=&#8217;dog&#8217;)<br />
or (n3.nat=&#8217;shved&#8217; and a3.ani=&#8217;dog&#8217;)<br />
or (n4.nat=&#8217;shved&#8217; and a4.ani=&#8217;dog&#8217;)<br />
or (n5.nat=&#8217;shved&#8217; and a5.ani=&#8217;dog&#8217;) ) &#8211;2<br />
and ( (n1.nat=&#8217;dat&#8217; and d1.dri=&#8217;tea&#8217;)<br />
or (n2.nat=&#8217;dat&#8217; and d2.dri=&#8217;tea&#8217;)<br />
or (n3.nat=&#8217;dat&#8217; and d3.dri=&#8217;tea&#8217;)<br />
or (n4.nat=&#8217;dat&#8217; and d4.dri=&#8217;tea&#8217;)<br />
or (n5.nat=&#8217;dat&#8217; and d5.dri=&#8217;tea&#8217;) ) &#8212; 3<br />
and ( (c1.col=&#8217;green&#8217; and c2.col=&#8217;white&#8217;)<br />
or (c2.col=&#8217;green&#8217; and c3.col=&#8217;white&#8217;)<br />
or (c3.col=&#8217;green&#8217; and c4.col=&#8217;white&#8217;)<br />
or (c4.col=&#8217;green&#8217; and c5.col=&#8217;white&#8217;) ) &#8212; 4<br />
and ( (c1.col=&#8217;green&#8217; and d1.dri=&#8217;cofe&#8217;)<br />
or (c2.col=&#8217;green&#8217; and d2.dri=&#8217;cofe&#8217;)<br />
or (c3.col=&#8217;green&#8217; and d3.dri=&#8217;cofe&#8217;)<br />
or (c4.col=&#8217;green&#8217; and d4.dri=&#8217;cofe&#8217;)<br />
or (c5.col=&#8217;green&#8217; and d5.dri=&#8217;cofe&#8217;) ) &#8212; 5<br />
and ( (s1.sig=&#8217;Pall Mall&#8217; and a1.ani=&#8217;bird&#8217;)<br />
or (s2.sig=&#8217;Pall Mall&#8217; and a2.ani=&#8217;bird&#8217;)<br />
or (s3.sig=&#8217;Pall Mall&#8217; and a3.ani=&#8217;bird&#8217;)<br />
or (s4.sig=&#8217;Pall Mall&#8217; and a4.ani=&#8217;bird&#8217;)<br />
or (s5.sig=&#8217;Pall Mall&#8217; and a5.ani=&#8217;bird&#8217;) ) &#8212; 6<br />
and (d3.dri=&#8217;milk&#8217;) &#8212; 7<br />
and ( (s1.sig=&#8217;Dunhill&#8217; and c1.col=&#8217;yellow&#8217;)<br />
or (s2.sig=&#8217;Dunhill&#8217; and c2.col=&#8217;yellow&#8217;)<br />
or (s3.sig=&#8217;Dunhill&#8217; and c3.col=&#8217;yellow&#8217;)<br />
or (s4.sig=&#8217;Dunhill&#8217; and c4.col=&#8217;yellow&#8217;)<br />
or (s5.sig=&#8217;Dunhill&#8217; and c5.col=&#8217;yellow&#8217;) ) &#8212; 8<br />
and (n1.nat=&#8217;norv&#8217;) &#8212; 9<br />
and ( (s1.sig=&#8217;Marlboro&#8217; and &#8216;cat&#8217;=a2.ani)<br />
or (s2.sig=&#8217;Marlboro&#8217; and &#8216;cat&#8217; in (a1.ani, a3.ani))<br />
or (s3.sig=&#8217;Marlboro&#8217; and &#8216;cat&#8217; in (a2.ani, a4.ani))<br />
or (s4.sig=&#8217;Marlboro&#8217; and &#8216;cat&#8217; in (a3.ani, a5.ani))<br />
or (s5.sig=&#8217;Marlboro&#8217; and &#8216;cat&#8217;=a5.ani)) &#8212; 10<br />
and ( (s1.sig=&#8217;Dunhill&#8217; and &#8216;horse&#8217;=a2.ani)<br />
or (s2.sig=&#8217;Dunhill&#8217; and &#8216;horse&#8217; in (a1.ani, a3.ani))<br />
or (s3.sig=&#8217;Dunhill&#8217; and &#8216;horse&#8217; in (a2.ani, a4.ani))<br />
or (s4.sig=&#8217;Dunhill&#8217; and &#8216;horse&#8217; in (a3.ani, a5.ani))<br />
or (s5.sig=&#8217;Dunhill&#8217; and &#8216;horse&#8217;=a5.ani)) &#8212; 11<br />
and ( (s1.sig=&#8217;Winfield&#8217; and d1.dri=&#8217;beer&#8217;)<br />
or (s2.sig=&#8217;Winfield&#8217; and d2.dri=&#8217;beer&#8217;)<br />
or (s3.sig=&#8217;Winfield&#8217; and d3.dri=&#8217;beer&#8217;)<br />
or (s4.sig=&#8217;Winfield&#8217; and d4.dri=&#8217;beer&#8217;)<br />
or (s5.sig=&#8217;Winfield&#8217; and d5.dri=&#8217;beer&#8217;) ) &#8212; 12<br />
and ( (n1.nat=&#8217;norv&#8217; and &#8216;blue&#8217;=c2.col)<br />
or (n2.nat=&#8217;norv&#8217; and &#8216;blue&#8217; in (c1.col, c3.col))<br />
or (n3.nat=&#8217;norv&#8217; and &#8216;blue&#8217; in (c2.col, c4.col))<br />
or (n4.nat=&#8217;norv&#8217; and &#8216;blue&#8217; in (c3.col, c5.col))<br />
or (n5.nat=&#8217;norv&#8217; and &#8216;blue&#8217;=c5.col)) &#8212; 13<br />
and ( (s1.sig=&#8217;Rothmans&#8217; and n1.nat=&#8217;nem&#8217;)<br />
or (s2.sig=&#8217;Rothmans&#8217; and n2.nat=&#8217;nem&#8217;)<br />
or (s3.sig=&#8217;Rothmans&#8217; and n3.nat=&#8217;nem&#8217;)<br />
or (s4.sig=&#8217;Rothmans&#8217; and n4.nat=&#8217;nem&#8217;)<br />
or (s5.sig=&#8217;Rothmans&#8217; and n5.nat=&#8217;nem&#8217;)) &#8212; 14<br />
and ( (s1.sig=&#8217;Marlboro&#8217; and &#8216;water&#8217;=d2.dri)<br />
or (s2.sig=&#8217;Marlboro&#8217; and &#8216;water&#8217; in (d1.dri, d3.dri))<br />
or (s3.sig=&#8217;Marlboro&#8217; and &#8216;water&#8217; in (d2.dri, d4.dri))<br />
or (s4.sig=&#8217;Marlboro&#8217; and &#8216;water&#8217; in (d3.dri, d5.dri))<br />
or (s5.sig=&#8217;Marlboro&#8217; and &#8216;water&#8217;=d5.dri)) &#8212; 15</p></blockquote>
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