Premise: Asian couple walking down street

Hypothesis: They are outside.
yes

Premise: A chihuahua on a leash stands outside a door grate, behind which the lower legs, skirt, and hand of the person holding the leash can be seen.

Hypothesis: the person is a 20 year old woman
it is not possible to tell

Premise: A woman wearing a white sun visor is playing tennis.

Hypothesis: The women isn't wearing anything on her head
no

Premise: Collie making a jump over a yellow hurdle.

Hypothesis: A dog makes a jump over a hurdle in a competition.
it is not possible to tell