Q: Premise: "A man using a flaming tuba."
Hypothesis: "The man is a very skilled musician."
Do we know that the hypothesis entailed by the premise?
A: Not every man using a flaming tuba is a skilled musician.
The answer is it is not possible to tell.

Q: Can we conclude from "A person is doing a trick on a wakeboard." that "Person on a wakeboard."?
Options:
- yes
- no
- it is not possible to tell
A: A person doing a trick on a waje board is on a wake board.
The answer is yes.

Q: If "A man works on the rear tire of a bike while a baby looks on from behind the bike." does that mean that "A man repairs a bicycle tire."?
Options:
- yes
- it is not possible to tell
- no
A: A bicycle is a bike. A tire of a bicycle is a bicycle tire. One works on a bicycle to repair it.
The answer is yes.

Q: Given the sentence "Two police officers casually scanning the beach on foot." can we conclude that "The police men are being watchful of any suspicious individuals."?
Options:
- yes
- it is not possible to tell
- no
A:
Police officers can be looking for other things besides suspicious individuals.
The answer is it is not possible to tell.