Input: 

Following the assassination attempt in 1981, Reagan said he felt God had spared him for a purpose, and he intended to devote the rest of his life in dedication to his God and to that purpose.

Sentence: Reagan was not religious before 1981 

Output: It's impossible to say


Input: 

How to improve your computer performance<br>Perform " disk cleanup " regularly. The disk cleanup utility is an excellent way to get rid of temporary files, recycle bin, system logs and other non essential files that build up and take up memory. To perform a disk cleanup perform the following steps: start] control panel] system and security] administrative tools] disk clean up.

Sentence: Performing " disk cleanup" will have no impact on computer performance.

Output: No


Input: 

Next year is the 50th anniversary of the Normandy invasion, an event that wouldn't have been possible without the Liberty ships. The volunteers hope to raise enough money to sail the O'Brien to France for the big D-Day celebration.

Sentence: The 50th anniversary will be exciting.

Output: It's impossible to say


Input: 

But does he know that, for example, Quebec's Unibroue, the micro-brewery Quebeckers are so proud of because it produces a quality beer that is sold all over the world, is unable to sell a single bottle of beer in Ontario because of the tariffs and structures the Ontario government has put in place to keep out producers from Quebec and, I suppose, from other provinces also?

Sentence: The micro-brewery Unibroue produces over 20 different beers in total.

Output:
It's impossible to say