Given the sentence "A boy playing on a swing." is it true that "A boy is swinging."?

yes
Explanation: One who is playing on a swing is often to be said to be swinging..

Premise: "A skier is in the air."
Based on this premise, can we conclude that the hypothesis "The person is outdoors in the mountains." is true?
Options:
- yes
- it is not possible to tell
- no

it is not possible to tell
Explanation: A skier in the air does not imply he or she is outdoors nor in the mountains..

If "Two woman in dresses smile at a camera while walking." does that mean that "The two women are frowning at the camera."?
Options:
- yes
- it is not possible to tell
- no

no
Explanation: Two woman are smiling while walking or frowning at the camera..

Test for natural language inference.
Premise: "A lady seated with a child wearing balloons and looking at cellphone."
Hypothesis: "A woman is at the fair with her child."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
it is not possible to tell
Explanation: That she is at the fair with her child is not implied by a woman sitting with a child wearing balloons..