Input: 

Oil prices, notoriously vulnerable to political events, spiked as high as $40 a barrel during the Gulf War in 1991.

Sentence: The spike in oil prices was unexpected.

Output: It's impossible to say


Input: 

I call upon your judgment and your sense of fairness in comparing the treatment of a Bloc Quebecois member, who answered the questions of his peers for five to six hours, and the treatment of the Liberal and Reform Party members, who will spend five minutes answering questions from the Bloc Quebecois.

Sentence: The Bloc Quebecois member didn’t take many questioms

Output: No


Input: 

"Cooper has never lost sight of these goals," Redford continued. "He brings to the position an infectious enthusiasm as well as a deep understanding of the Sundance brand and culture... He is a natural choice of succession to lead the festival into the 21st century." Among his other accomplishments for Sundance are helping foster the development of New Frontier on Main program, a multimedia conjunction of film, music and other art forms, and helping boost the festival's Internet presence — through its official Web site (www.sundance.org/festival), an online version of the festival, as well as the Sundance Institute's agreements with iTunes and Netflix to showcase and distribute short films.

Sentence: Cooper's accomplishments for Sundance include removing the festival's Internet presence.

Output: No


Input: 

Wait<br>My son's friend is very eccentric. He does not drive or bike, preferring to walk. Yesterday he needed a ride home. My son drove him but told him to wait while he visited us. My son did not want him to talk, as he stays for a long time.

Sentence: Distances are not great where they live

Output:
It's impossible to say