Sentence 1: but uh i remember working on those cars you'd open the hood and there was basically nothing in there but an engine and a few things Now you open the hood and it's scary like you say it takes a plumber to figure out where all this stuff goes yeah

Sentence 2: It wasn't confusing to work on cars back in the day, but it's not that bad today either.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Harrer's memoir, which covers the years 1939-1952, never mentions him.)

Sentence 2: Harrer's memoir covers 13 years.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Bad luck.

Sentence 2: We were lucky and blessed at every step.
Is this second sentence entailed by the first?

Answer:
no