Premise: A boy in a brown jacket holds a large chunk of snow.

Hypothesis: the boy is having a snowball fight
it is not possible to tell

Premise: A blond woman in a red top and blue jeans with a large green quilted handbag stands on the sidewalk talking on her cellphone as a man dressed in brown stands by.

Hypothesis: The woman is talking on a iPhone.
it is not possible to tell

Premise: A guy with a white sweatshirt and guitar drinks from a can while on stage.

Hypothesis: A guy with a white sweatshirt and guitar drinks from a coconut while on stage.
no

Premise: A man in blue coat, snowboarding down a mountain, in midair jump.

Hypothesis: A man in blue is skiing down a slope.
no