Problem: John Frush Knox (19071997) served as secretary and law clerk to United States Supreme Court Justice James Clark McReynolds from 1936 to 1937. After working at various law firms, he took over the family mail-order business and then worked as an insurance adjuster. He is chiefly known for his memoir of his year spent working for Justice McReynolds.

Based on the paragraph above can we conclude that "John Frush Knox was a US Supreme court clerk after he took over his family's mail-order business."?

A: Yes

Problem: The East Broad Top Railroad and Coal Company (EBT) is a for-profit, narrow gauge historic railroad headquartered in Rockhill Furnace, Pennsylvania, 19 mi north of Interstate 76 (the Pennsylvania Turnpike) and 11 mi south of U.S. Route 22, the William Penn Highway.

Based on the paragraph above can we conclude that "The East Broad Top Railroad and Coal Company profited 4 million dollars last year."?

A: It's impossible to say

Problem: Tinker Tailor Soldier Spy is a 1974 spy novel by British author John le Carre. It follows the endeavors of taciturn, aging spymaster George Smiley to uncover a Soviet mole in the British Secret Intelligence Service. Since the time of its publication, the novel has received critical acclaim for its complex social commentary and lack of sensationalism, and remains a staple of the spy fiction genre.

Based on the paragraph above can we conclude that "The story follows the endeavors of a Soviet Mole in the British Intelligence agency."?

A:
Yes