[QUESTION] Given the sentence "A man in a yellow shirt fixes shingles on a roof with a hammer." is it true that "A man hammers away at his roof to fix the shingles."?
Because a person his working on a roof doesn't mean is his roof.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A worker stands on a scaffolding to repair a brick building." can we conclude that "A worker standind on scaffolding in the rain."?
Options:
- yes
- it is not possible to tell
- no
A worker standing on a scaffolding to repair a brick building is not necessarily in the rain.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Woman pole vaulting in a stadium." can we conclude that "The woman is jumping hurdles."?
Options:
- yes
- it is not possible to tell
- no
A woman jumping hurdles is not pole vaulting at the same time.
The answer is no.

[QUESTION] Given the sentence "A man wearing all black carrying a black trash bag is bending down to pick something up in a dirt lot." can we conclude that "A man is taking out the trash and bend over to pick up some litter as he passes it."?
Options:
- yes
- it is not possible to tell
- no
A man could be picking something else up besides some litter.
The answer is it is not possible to tell.