Premise: Two men are sitting on a street side with some jewelry to sell.

Hypothesis: men selling stolen jewelry
it is not possible to tell

Premise: Pigeons festival on the roof.

Hypothesis: Birds are having a fiesta on the roof.
yes

Premise: A boy in a tee-shirt and shorts playing an instrument next to a girl singing while playing the guitar.

Hypothesis: The boy is playing and instrument and the girl is singing.
yes

Premise: A Chinese girl hand off the baton to the other young boy in this relay race for team blue.

Hypothesis: A boy and girl sitting at a bar drinking beer.
no