Premise & hypothesis.
A man walking while holding roses.

A MAN IS CARRYING FLOWERS.
++++++++++
true or not.
yes

Premise & hypothesis.
A little boy in a swimming pool.

A man is swimming in a pool
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
There are a bunch of students studying hard.

A large group of students are studying together for the exam.
++++++++++
true or not.
yes