QUESTION: Premise: "People are in a restaurant eating."
Hypothesis: "A solitary man reading a book by candlelight."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A man would not be solitary if hes in a restuarant eating with people.
The answer is no.

QUESTION: Premise: "A man preparing his gondola for a short trip."
Hypothesis: "A man prepares his gondola for a long trip."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A short trip is not the same as a long trip.
The answer is no.

QUESTION: Premise: "The backview of a man dressed up in a jacket and a dog running towards him."
Hypothesis: "Nobody has a jacket."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
If nobody has a jacket then there are no man dressed up in a jacket.
The answer is no.