QUESTION: Premise: "A man riding on the back of a trash truck."
Hypothesis: "The man is a city sanitation employee."
Do we know that the hypothesis entailed by the premise?

SOLUTION: Let's solve this gradually. Sentence one states the man is riding in the back of a trash truck. Just because he is a sanitation employee doesn't mean he rides in the back of a trash truck.
Answer is it is not possible to tell.

QUESTION: Premise: "A young girl eating an onion ring at a fast food restaurant."
Hypothesis: "A girl sitting at a table in a restaurant."
Do we know that the hypothesis entailed by the premise?

SOLUTION: Let's solve this gradually. Eating an onion ring doesn't imply sitting down at a table.
Answer is it is not possible to tell.

QUESTION: Premise: "A young girl practices gymnastics while two younger kids play in the background."
Hypothesis: "The girl is getting ready to take a psat test."
Do we know that the hypothesis entailed by the premise?

SOLUTION: Let's solve this gradually. The girl cannot practice gymnastics and be getting ready to take PSAT test.
Answer is no.

QUESTION: Premise: "A man in a brown jumpsuit riding his bicycle on a sidewalk."
Hypothesis: "A man training for a race."
Do we know that the hypothesis entailed by the premise?

SOLUTION:
Let's solve this gradually. A man riding his bicycle on a sidewalk does not mean a man is training for a race.
Answer is it is not possible to tell.