[QUESTION] Premise: "Horseback riders file down a wooded path."
Hypothesis: "The amateur riders wear helmets for safety."
Do we know that the hypothesis entailed by the premise?
Not all horseback riders are an amateur and file down a path does not imply to wear a helmet.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A baseball pitcher getting ready to throw his pitch."
Hypothesis: "A baseball pitcher is getting ready to strike out his opponent."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Not all baseball pitcher getting ready to throw his pitch can strike out his opponent.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A young man smoking a cigarette."
Hypothesis: "A sad man smoking a cigarette."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Just because young man smoking a cigarette doesn't mean he is sad.
The answer is it is not possible to tell.

[QUESTION] Premise: "A yard laborer is cutting grass with a push lawn mower buy a busy street and a parking lot."
Hypothesis: "A person is using a lawn mower."
Do we know that the hypothesis entailed by the premise?
Laborer is a person and pushing lawn mower is same that of using it.
The answer is yes.