Input:

A former philosophy teacher whose best-known novel, Sophie's World, was a surprise international best-seller.

Sentence: The novel mentioned in the statement's successful

Output: Yes

Input:

Desert Rock Airport is a private-use airport located three miles (5 km) southwest of the central business district of Mercury, in Nye County, Nevada, United States. The airport is located on the Nevada Test Site and is owned by the United States Department of Energy.

Sentence: Desert Rock Airport is a small private-use airport

Output: It's impossible to say

Input:

Barack Obama made history on 4 November 2008 when he defeated Republican rival John McCain to become the first black president of the United States. He had already broken new ground in his White House campaign, as the first black candidate to become the presidential choice of either major US party. To many people, Mr Obama seemed to come from nowhere. Although he had served in the Illinois state senate for eight years, it was only in 2004 that he shot to national prominence, with a speech that stirred the Democratic National Convention.

Sentence: By November 4th, 2008, Barack Obama had been alive for more than 49 years.

Output: It's impossible to say

Input:

More than 150 dolphins, marine turtles and beaked whales have been washed up dead on beaches in Africa.

Sentence: The government will be testing the bodies for chemicals

Output:
It's impossible to say