[Q] Premise: "Two men work to fix train tracks."
Hypothesis: "Some men are working to prevent a train crash."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
[A] Their primary consideration could be routing maintenance rather than trying to prevent a train crash.
The answer is it is not possible to tell.

[Q] Premise: "A man on a ladders is cleaning the ceiling with a brush."
Hypothesis: "A man is on a ladder."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
[A] A man being on a ladders is the same as a man being on a ladder.
The answer is yes.

[Q] Premise: "A surgeon and two assistants perform an operation."
Hypothesis: "A surgeon with no assistants performing an operation."
Do we know that the hypothesis entailed by the premise?
[A] The surgeon either with two assistants or no assistants performing an operation.
The answer is no.