Q: Given the sentence "A woman sings to a group of people holding their hands up." can we conclude that "A dentist is working on a patient."?
Options:
- yes
- it is not possible to tell
- no
A: The two activities are mutually exclusive- a dentist working on a patient is not likely singing to a crowd at the same time.
The answer is no.

Q: Can we conclude from "A male senior citizen is drinking liquor straight from the bottle." that "A male senior citizen is trying to drink away his problems."?
Options:
- yes
- no
- it is not possible to tell
A: The man may just be drinking for fun and not attempting to drink away his problems.
The answer is it is not possible to tell.

Q: Can we conclude from "A smiling little boy jumps up to a toy basketball hoop." that "A happy child dunks a toy basketball."?
Options:
- yes
- no
- it is not possible to tell
A: A smiling child does not imply he is a happy child. A child jumping up to a toy basketball hoop does not imply he dunks a toy basketball.
The answer is it is not possible to tell.

Q: Can we conclude from "A man is wearing a black mask and black clothing in a social setting." that "The man wears a mask to a masquerade."?
Options:
- yes
- no
- it is not possible to tell
A:
A man can wear a mask and not go to a masquerade.
The answer is it is not possible to tell.