Question:
Premise: Two nuns are posing for a picture.

Hypothesis: The nuns are not smiling for their picture.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: A young man flips up a welders' mask as a young girl looks on, a six-pack, barbecue, and chalk message in the background.

Hypothesis: A man is has just finished welding something near a barbecue.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: A woman wearing rolled up jeans passing bus a pass whose ad appears to be checking her out.

Hypothesis: The women wearing rolled up jeans is actually an alien.
Is the hypothesis true?

Answer:
no