Input:

Ernest R. Kroeger (August 10, 1862 April 7, 1934) was an American composer. He is mainly known for the pedagogical works he composed for piano; he also taught music in St. Louis, Missouri. Today his papers are held at the Missouri Historical Society.

Sentence: Kroeger loved his work as a composer.

Output: It's impossible to say

Input:

Grenzschutzgruppe 9 (GSG 9) (English: Border Protection Group 9 ) is the elite Police Tactical Unit of the German Federal Police (German: "Bundespolizei" ). GSG 9 counterparts on the state level are the Special Deployment Commandos (German: "Spezialeinsatzkommandos (SEK)" ).

Sentence: All members carry weapons.

Output: It's impossible to say

Input:

Colin Francis Weeber Isaacs (born 1953) is a former politician in Ontario, Canada. He was a New Democratic Party member in the Legislative Assembly of Ontario representing the riding of Wentworth from 1979 to 1981. He works as an environmental consultant and journalist and publishes the Gallon Newsletter.

Sentence: Colin went to a prestigious college.

Output: It's impossible to say

Input:

Mystery is a 1990 novel by American author Peter Straub, and is the second installment in Straub's loosely connected "Blue Rose Trilogy". The novel falls into the genre of crime fiction, and was preceded by "Koko" and followed by "The Throat". The book was published by Dutton, won the 1993 Bram Stoker Award and was a 1994 WFA nominee

Sentence: The novel "Mystery" falls into the genre of crime fiction.

Output:
Yes