[QUESTION] If "A man in a white coat is working on a machine." does that mean that "Someone is writing on a notepad."?
Options:
- yes
- it is not possible to tell
- no
Someone is not always a man. One can be writing without working.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A bike rider flipping over a black ramp."
Hypothesis: "A bike rider doing a bmx trick in a competition."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A bike rider can be doing tricks but not be in a competition.
The answer is it is not possible to tell.

[QUESTION] Premise: "Young adults have barbecue in the park."
Hypothesis: "The young adults are celebrating july 4th."
Do we know that the hypothesis entailed by the premise?
Celebrating July 4th is not the only occasion when young adults can have a barbecue in the park.
The answer is it is not possible to tell.

[QUESTION] Premise: "A person is driving a tractor over some cracked ground."
Hypothesis: "A farmer is driving a tractor in a field."
Do we know that the hypothesis entailed by the premise?
The cracked ground could be a road not necessarily a field.
The answer is it is not possible to tell.