Premise: a man jumping of the wall of a large graffitied wall.

Hypothesis: There is a person next to a graffitied wall.
yes

Premise: A group of spectators outside in the cold, all focusing on the same object.

Hypothesis: The people are outside in cold weather.
yes

Premise: Here are ten people skating and one guy without a shirt dancing on concrete in a tree-lined park.

Hypothesis: there is a dance-off in the park
it is not possible to tell

Premise: A man with sunglasses and a beanie hat is holding a small child.

Hypothesis: Man hold his son
it is not possible to tell