Premise: A group of friends seated on concrete waiting for something.

Hypothesis: A group of people sitting on concrete waiting.
yes

Premise: Flight attendant serves passengers.

Hypothesis: plane about to take off
it is not possible to tell

Premise: A man waits on a subway platform while train is pulling into the station.

Hypothesis: A man waits on a subway platform.
yes

Premise: A man dressed in a brown coat and bomber hat is carrying shopping bags and walking towards an intersection.

Hypothesis: A man is carrying bags.
yes