QUESTION: If "A lady performing in a underground train station." does that mean that "The train crashed."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The lady cannot be performing in a train station if the train has crashed.
The answer is no.

QUESTION: Premise: "Several hispanic workers in blue safety hats and orange safety vests stand before their leader in a yellow safety hat."
Hypothesis: "The vests are to big."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Wearing blue safety hats and orange safety vests doesn't imply vests are to big.
The answer is it is not possible to tell.

QUESTION: Premise: "A lady sitting by a tree on a homemade stage playing a guitar."
Hypothesis: "A crowd is gathered to watch a lady play music."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
It is not evident that a crowd is present or that they have gathered to watch the lady.
The answer is it is not possible to tell.