[Q] Premise: "An elderly man clad in gray slacks and a white button shirt is sitting on a rounded step next to a full bag."
Hypothesis: "A man is delivering crocheries."
Do we know that the hypothesis entailed by the premise?
[A] A man can have a bag and not be delivering crocheries.
The answer is it is not possible to tell.

[Q] Test for natural language inference.
Premise: "Synchronized swimmers with arms and legs raised out of water."
Hypothesis: "Swimmers are swimming."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] Raising arms and legs out of water is swimming and the people who swim are swimmers.
The answer is yes.

[Q] Given the sentence "A young man with his back to the camera is being watched by youths sitting at two picnic tables before a backdrop of grass and trees." can we conclude that "A young man with his back to the camera is being watched."?
Options:
- yes
- it is not possible to tell
- no
[A] The young man is being watched by youths sitting at two picnic tables and his back is to the camera.
The answer is yes.