Premise & hypothesis.
A young lady dancing in front of a building.

She entertains the people in the building
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A boy appears to be dancing to music in a building filled with people.

some people dance for a boy
++++++++++
true or not.
no

Premise & hypothesis.
Two men in suites sway to the left, one holding a briefcase.

Two men in suits sway to the left.
++++++++++
true or not.
yes