Input: 

Anglo/Dutch Royal Dutch Shell, Total, of France, and Spain's Repsol were all named as examples of established oil companies involved in the oil-for-food programme before surcharges began in 2001.

Sentence: oil for food is a north european program

Output: It's impossible to say


Input: 

"Mirror Mirror" is a song recorded by pop band M2M, composed of singers Marion Raven and Marit Larsen. It was the second single from their debut album, "Shades of Purple". The song reached No. 13 in Canada, No. 30 in Australia and No. 62 on the Billboard Hot 100. It was certified gold in the US, selling over 600,000 units.

Sentence: Marion Raven is a member of pop band M2M

Output: Yes


Input: 

A recent study found no evidence of seasonal affective disorder in Iceland where the sun does not appear for a long time in the winter.

Sentence: The study was done by a university

Output: It's impossible to say


Input: 

The Industrial and Commercial Bank of China Ltd. raised $19.07 billion Friday after pricing its initial public offering at HK$3.07 (39 cents), the top end of its indicative price range, to become the world's biggest ever IPO.

Sentence: The Industrial and Commercial Bank of China Ltd. raised more than 17 billion dollars. 

Output:
Yes