Premise: An asian girl and an asian guy is looking each other with sour faces in an underground station.

Hypothesis: People are angry at eachother in a dark transit station.
it is not possible to tell

Premise: One boy is pushing another boy on a swing.

Hypothesis: Nobody is near the swing.
no

Premise: Protesters assemble to promote the clean air act.

Hypothesis: All the protesters know eachother.
it is not possible to tell

Premise: A barber shaving someone's head.

Hypothesis: A barber doing head shave to stranger
yes