'' Purple Clover '' describes the site as for people who are '' ... still cool , still curious and after all those years are still crazy .
'' Purple Clover '' describes the site as being for people who are '' ... still cool , still curious , and still crazy after all these years . ''

Are these two sentences paraphrases of each other? OPTIONS:
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- yes
yes

Nijgh was coached by Ernst van Altena , who had previously translated works by Jacques Brel .
Ernst van Altena , who had previously translated works by Jacques Brel , was trained by Ernst Nijgh .

Are these two sentences paraphrases of each other? OPTIONS:
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- yes
no

The 1981 Purdue University football team represented Purdue Boilermakers during the 1981 Big Ten Conference football season .
The 1981 Purdue University football team represented Purdue Boilermakers during the football season of the Big Ten conference in 1981 .

Are these two sentences paraphrases of each other? OPTIONS:
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- yes
yes

A primitive ring is left commutative if and only if it is a field .
A primitive ring is left commutative only if it is a field .

Are these two sentences paraphrases of each other? OPTIONS:
- no
- yes
yes