Premise: A snowboarder performs a jump on the clean, white snow.

Hypothesis: a snowboarder performs a jump in the snow
yes

Premise: A man with a scruffy beard and a hat appears to be giving a speech to a crowd holding a microphone.

Hypothesis: The man is running for office.
it is not possible to tell

Premise: A group of religious women praying.

Hypothesis: Nobody is praying.
no

Premise: A brown dog is clinging to it's master's leg.

Hypothesis: A brown dog is with his owner
yes