Premise: Three people are in an alley with a dumpster, one skateboarding over the dumpster while the other two look on.

Hypothesis: Two people are in an alley with a dumpster.
no

Premise: A woman walks along the beach as three children follow her in a line.

Hypothesis: Four people walk at the beach.
yes

Premise: A boy back flipping into a lake in midair.

Hypothesis: A boy is doing a double backflip.
it is not possible to tell

Premise: A side profile of a man with a mustache and goatee wearing a suit and tie.

Hypothesis: He is dressed up.
it is not possible to tell