Sentence 1: Favorite sons of Besancon include Victor Hugo, 19th-century thinker Pierre-Joseph Proudhon, and Auguste and Louis Lumiyre, inventors of cinematography.

Sentence 2: Victor Hugo and Pierre-Josephn Proudhon were close friends.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: because it's hard for them it's hard to explain to someone that look it's costing us you know umpteen thousand dollars a year to bury this stuff in the ground

Sentence 2: There are landfills everywhere, and people are not aware of the cost of having them.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Nothing less."

Sentence 2: All that's left is the truth, that she's the killer.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell