Premise & hypothesis.
A girl is listening to something on headphones.

The girl is wearing pink headphones and is listening to music.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
a young man wearing a green and white shirt hanging by two straps in a subway car

A man is riding a bike.
++++++++++
true or not.
no

Premise & hypothesis.
Two shirtless men balance on scaffolding.

There are at least two men.
++++++++++
true or not.
yes