Premise: Woman playing tennis in a white outfit and white shoes, with 2 men watching from the sidelines.

Hypothesis: A woman plays tennis in the Wimbledon.
it is not possible to tell

Premise: A man wearing a hard hat is talking on a cellphone.

Hypothesis: The man on the phone was surfing on a tropical ocean.
no

Premise: Three students giving an oral presentation.

Hypothesis: Students are speaking in a debate on gun control.
it is not possible to tell

Premise: Two men in a group of people looking down at something.

Hypothesis: Two men looking down at something.
yes