Question:
Premise: A group parades through the streets of a city holding flags and signs.

Hypothesis: People are engaged in an ultra-nationalistic protest.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: A man standing by a yellow sign.

Hypothesis: A man is near a sign.
Is the hypothesis true?

Answer:
yes

Question:
Premise: Two girls are walking along the street and talking.

Hypothesis: One of the girls is a mute while the other is deaf.
Is the hypothesis true?

Answer:
no