Sentence 1: He identifies unavoidable references to Hiss only in footnotes, and finally presents their relationship in a brief flashback in the course of detailing the trials.

Sentence 2: He mentions the bad things Hiss did in his footnotes.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: and apparently the Rangers last year won a lot of one run games

Sentence 2: The Rangers won two games in the previous year, of which only one is a one run game.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Marco Polo in Far East

Sentence 2: Marco Polo spent his entire life in the far east.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell