Premise & hypothesis.
Three boys in swimming trunks are diving into the lake.

The boys are sitting on the grass near the lake.
++++++++++
true or not.
no

Premise & hypothesis.
This is a young lady riding an elephant with her safari guide riding on the head of the elephant.

This is a young man riding an elephant with hs safari guide riding on the head of the elephant.
++++++++++
true or not.
no

Premise & hypothesis.
Competing skier going down the course leaning to make a sharp turn.

The skier is on a chairlift.
++++++++++
true or not.
no