Sentence 1: These would be smaller planets, comparatively poorer in hydrogen and richer in oxygen.

Sentence 2: The planets need to have similar features to ours.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: and then i put me a little five gallon bucket and it's just outside the garage door so every time we drink a Coke or whatever we crush the can and just drop it into the bucket

Sentence 2: I put a five gallon bucket outside the garage
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: However, in the early 1980s Congress began restricting legal assistance to aliens by LSC recipients pursuant to provisos in the Corporation's appropriations acts.

Sentence 2: Congress did not believe the aliens needed legal assistance at the time.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell