Sentence 1: I said I didn't know that I couldn't remember anything at all.

Sentence 2: I spoke, but wasn't sure if I could remember any one thing.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Certainly not. We all trooped out into the corridor, leaving the two doctors alone, and I heard the key turned in the lock behind us.

Sentence 2: The doctors conducted their work.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: they get real nasty the Hyundee helicopters come out and they would level entire areas okay you're from the Dallas area right

Sentence 2: The helicopters come out and they level the whole place trying to find a fugitive.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
it is not possible to tell