Premise: Three men and two women sitting at a dining table getting ready to eat.

Hypothesis: A man surfs the internet at home.
no

Premise: A pedestrian walking under a lovely old tree bare of leaves but green grass underfoot, with building tops showing below.

Hypothesis: a person is lying on his back on the floor
no

Premise: There is a group of five men in dark blue outfits and one is playing an accordion.

Hypothesis: There is a group of five men.
yes

Premise: A group of theater students are jumping in sequence on stage.

Hypothesis: A group of students are on a stage.
yes