[QUESTION] Premise: "A man is bending down doing some work on a sidewalk."
Hypothesis: "The man is working for the city."
Do we know that the hypothesis entailed by the premise?
That one is doing work on a sidewalk does not imply the work is for the city.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A man with a tennis racquet in his hand jumps to hit a tennis ball." that "A man plays lawn tennis."?
Options:
- yes
- no
- it is not possible to tell
Tennis can be played on many surfaces not just on a lawn.
The answer is it is not possible to tell.

[QUESTION] Premise: "A person jumping off of an outdoor staircase."
Based on this premise, can we conclude that the hypothesis "Everyone is on an escalator." is true?
Options:
- yes
- it is not possible to tell
- no
It is possible there are more than one person on the escalator.
The answer is no.

[QUESTION] Given the sentence "A pack of dogs roughhousing by a car on a dirty street." is it true that "Dogs playing in the street at night."?
The dogs could be playing at any time of day and it may not be at night.
The answer is it is not possible to tell.