Premise: A biker is riding along a track element located with a wooded area.

Hypothesis: The pro cyclist is riding off of major streets so he doesn't block traffic like a jerk
it is not possible to tell

Premise: A man in a black t-shirt jogs as others go about their day.

Hypothesis: a man is jogging
yes

Premise: A little boy in a red outfit is on a man's shoulders.

Hypothesis: A young girl hugs her mother.
no

Premise: A woman blowing out candles on her 90th birthday.

Hypothesis: It's her 90th birthday and she has no friends.
it is not possible to tell