Premise: Several construction workers are insulating a foundation for a future building or other structure.

Hypothesis: The workers are male
it is not possible to tell

Premise: A young girl signs a large banner while a woman holds it still.

Hypothesis: A girl digns a banner for a fan while the fan holds it steady.
it is not possible to tell

Premise: A woman in chinese attire with a red fan in front of her face with people in karate outfits behind here.

Hypothesis: The woman in red fans herself.
yes

Premise: A woman wearing an apron is working.

Hypothesis: a woman is wearing an apron to cook
yes