Question:
Premise: A group of children and adults who are all wearing blue backpacks are standing on a sidewalk trail in the desert.

Hypothesis: People wear packs.
Is the hypothesis true?

Answer:
yes

Question:
Premise: A group of children walk down a path.

Hypothesis: The children are walking in the street.
Is the hypothesis true?

Answer:
no

Question:
Premise: A guy is riding a bike up the side of a hill.

Hypothesis: A guy is riding a bike down a hill.
Is the hypothesis true?

Answer:
no