Premise: A man demonstrates his product to an audience.

Hypothesis: A man tries to sell his product to an audience.
it is not possible to tell

Premise: Two men wearing bright green shirts are looking for something by a bush.

Hypothesis: Two men are looking for a lost ring.
it is not possible to tell

Premise: a man in black and a man in a red shirt and white shorts are jogging down the street.

Hypothesis: Two male joggers, one wearing black and one has a red shirt and white shorts on, are running on the road.
yes

Premise: Male riding a racing bicycle.

Hypothesis: A boy is racing his brother.
it is not possible to tell