Premise: A track athlete does a pole vault.

Hypothesis: An Olympic athlete competes in the pole vault event.
it is not possible to tell

Premise: A man dressed in black rides a green bike.

Hypothesis: A bikerider is present
yes

Premise: A woman in a pink shirt is talking to a man in a black shirt with the words "GROOM" on the front.

Hypothesis: A women is trying to calm down a man a day before his wedding
it is not possible to tell

Premise: A woman in a green jacket presses the "Do Not Walk" button so she can cross the road.

Hypothesis: The woman is in her car
no