Sentence 1: Can't say I have, he replied at last.

Sentence 2: He couldn't say he had, but he was thinking it.
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: The chauffeur slipped in his clutch, and with a bound the car started.

Sentence 2: The car failed to start even after the chauffeur did his best to start it.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: no

Sentence 1: We shall see.

Sentence 2: We will soon see.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
it is not possible to tell