Premise & hypothesis.
A man in a hat and an apron works on a bicycle.

the man is a cook
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
Excited girls gather together at a volleyball match.

The girls are happy.
++++++++++
true or not.
yes

Premise & hypothesis.
A girl is taking a picture of another girl in a park.

A girl is playing with her dog.
++++++++++
true or not.
no