Premise & hypothesis.
Two brown dogs playfully fight in the snow.

the dogs are brothers.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
An elderly man with a long gray beard is playing his flute while sitting on the ground.

An older man attempts to play his flute but fails.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A skateboarder in a light green shirt.

They are skating in the park.
++++++++++
true or not.
it is not possible to tell