[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.

[QUESTION] Premise: "One person is sitting on a large rock while another person is standing nearby."
Hypothesis: "A person wathes another sit on a large rock."
Do we know that the hypothesis entailed by the premise?
One person wathes while standing to another person sitting on a large rock.
The answer is yes.

[QUESTION] Given the sentence "A person with swim cap and goggles taking a breath." can we conclude that "A person is swimming."?
Options:
- yes
- it is not possible to tell
- no
A person with swim cap and goggles taking a breath can also be said to be swimming.
The answer is yes.

[QUESTION] Given the sentence "A man talks to a mounted policeman." can we conclude that "The police man is wearing a hat."?
Options:
- yes
- it is not possible to tell
- no
Not all mounted policeman are wearing hats all of the time.
The answer is it is not possible to tell.