Premise & hypothesis.
A girl wearing a red shirt is pulling on the necklace she is wearing.

The girl's necklace was given to her by her mother.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A mildly overweight man with a backpack is at the beach with two kids, who are playing in the sand.

A group of people is outside on the beach.
++++++++++
true or not.
yes

Premise & hypothesis.
The mountain biker in blue rides down a rocky path.

A man is riding a bike.
++++++++++
true or not.
it is not possible to tell