Premise: Two ladies seated at a table share a laugh.

Hypothesis: two people are laughing at the table.
yes

Premise: A young man in shorts looks down from a rooftop at a young man on the ground walking away.

Hypothesis: A man is looking at another man.
yes

Premise: The doctor is talking to the patient who is hooked up and receiving medication.

Hypothesis: The patient has a needle in his arm.
it is not possible to tell

Premise: A man using a metal detector walking on the beach as people are in the water and on the beach.

Hypothesis: There are people swimming in the water.
yes