Premise: Skateboarding grinding in a bootleg skate park.

Hypothesis: A skateboarder is in a park and is happy.
it is not possible to tell

Premise: A dark-haired lade with glasses and a striped shirt is holding a very young baby in her arms.

Hypothesis: A person in glasses is holding a baby in their arms.
yes

Premise: Boy climbing on a chain fence.

Hypothesis: a boy climbs a fence
yes

Premise: A man in a sweater is playing darts.

Hypothesis: A guy is playing pool.
no