Input: 

New question, new subject. Vice President Gore, on the environment. In your 1992 book you said, quote, "We must make the rescue of our environment the central organizing principle for civilization and there must be a wrenching transformation to save the planet." Do you still feel that way?

Sentence: The former president made AL Gore write this book.

Output: It's impossible to say


Input: 

Once Susan had told him that if he touched his tongue to a frosty latch all the skin would tear off it .<br>Jem had promptly done it , `` just to see if it was so . ''<br>He found it was `` so , '' at the cost of a very sore tongue for several days .<br>But Jem did not grudge suffering in the interests of science .

Sentence: Jem has never met a person named Susan

Output: No


Input: 

Vonn Cummings Sumner (born 1976 in Palo Alto, California) is an internationally exhibited American painter. He received his Bachelor of Arts, in 1998 and Master of Fine Arts, Painting in 2000, both from the University of California, Davis, where he studied with, among others, the celebrated American painter and educator Wayne Thiebaud.

Sentence: Wayne Thiebaud exhibited internationally

Output: It's impossible to say


Input: 

Via The Register: The French supreme court has upheld music industry group SNEP’s request to get Google to censor certain search terms associated with piracy. The court has ordered the search engine to remove words “Megaupload” “rapidshare” and “torrent” from the autocomplete and instant search suggestions. While the wouldn’t hold Google responsible for downloads that people found using the search engine, the court insisted that Google ought to make things a little more difficult by blocking certain key terms.

Sentence: Some terms can be blocked.

Output:
Yes