Premise & hypothesis: Is the premise "A white dog is trying to catch a ball in midair over a grassy field." true if "The dog is playing outside."?
A: yes

Premise & hypothesis: Is the premise "Two dogs in the water." true if "A squeaky toy was also there"?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A male teenager doing a trick in a skate park on a skateboard." true if "A man is playing Dance Dance Revolution."?
A: no

Premise & hypothesis: Is the premise "A few people are on sitting on a train." true if "A family waits for the train to depart."?
A:
it is not possible to tell