Premise & hypothesis.
A man in a green T-shift and black shorts sits on an exercise bike with two large water bottles.

A man is wearing a green T-shirt
++++++++++
true or not.
yes

Premise & hypothesis.
A fluffy Sheltie is trotting along a path.

The sheltie is black.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
Five Asian men eat at a table next to meat on meat hooks.

Vegetarians are eating bananas.
++++++++++
true or not.
no