Input:

Digging in the badlands of east central Utah on a tip from a repentant poacher, researchers have unearthed the fossil remains of a dinosaur "missing link".

Sentence: The researchers were all about 28 years old

Output: It's impossible to say

Input:

The Kestrels were a vocal harmony quartet from Bristol, England, most notable as the group through which the songwriting team of Roger Cook and Roger Greenaway first met and started composing jointly. They were one of the busiest vocal groups in England during the late 1950s and early 1960s, singing back-up behind Joe Brown, Billy Fury, Eden Kane, and Benny Hill, amongst others, and made dozens of television appearances between 1958 and 1964.

Sentence: The Krestrels hardly had any down time during the 1950's.

Output: Yes

Input:

Tunisia's sovereignty over its natural resources has become a controverisal issue after the 2011 revolution. One of the most notorious cases that has sparked outrage is the allowance given to a French company to extract Tunisian salt for the same price since 1949.

Sentence: The revolution in Tunisia happened more than 3.5 years ago.

Output: Yes

Input:

Christ Episcopal Church is a historic Episcopal church in Belvidere, Allegany County, New York. The Gothic Revival style frame church was built in 1860 and features Carpenter Gothic elements. It is a one story board and batten clad rectangular structure with a slate gable roof.

Sentence: Christ Episcopal Church is in the Gothic Revival Style.

Output:
Yes