Question:
Premise: A group of children are forming a train with their wheelchairs.

Hypothesis: A group of sad children are forming a train with their wheelchairs.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: Two adults and two children pose on a mountaintop.

Hypothesis: People are posing on a mountain.
Is the hypothesis true?

Answer:
yes

Question:
Premise: Two men working on a steel structure.

Hypothesis: Two men are digging a ditch.
Is the hypothesis true?

Answer:
no