Premise: A group of people are congregating on a street corner.

Hypothesis: A group of people stand together on a street corner.
yes

Premise: People sitting at a bar.

Hypothesis: Everyone is standing.
no

Premise: A group of men in blue shirts and white pants walk across the street in a crowd of people.

Hypothesis: Tall humans walking
it is not possible to tell

Premise: Teenagers play instruments in an orchestra.

Hypothesis: A boy plays harmonica.
no