Question:
Premise: A guy with boots is on a ladder.

Hypothesis: A guy is working on the roof.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: A subway employee is helping a man in a wheelchair onto the subway.

Hypothesis: The man is pushed down a hill.
Is the hypothesis true?

Answer:
no

Question:
Premise: A worker begins to make renovations to the outside of a building.

Hypothesis: The worker is doing construction
Is the hypothesis true?

Answer:
yes