Premise: A crowd of children and some are wearing green costumes.

Hypothesis: Some of the children are dressed up.
yes

Premise: A couple on a#51 boat laying in the sun at a lake.

Hypothesis: The lake has no boats at it.
no

Premise: The German shepherd leaps off the stairs.

Hypothesis: A dog jumps.
yes

Premise: Several people ride up an escalator.

Hypothesis: the people are on the escalator
yes