Premise & hypothesis: Is the premise "A young man in a blue shirt with white shorts volleys a tennis ball." true if "A sad man in a blue shirt with white shorts volleys a tennis ball."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A snowboarder getting air on the mountain." true if "A person is performing for the judges."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "An ethnic band including a dancer, singer, a violinist, and a dancing pair perform in front of an audience on a brightly decorated stage." true if "The band is based on ancient Russian traditions"?
A: it is not possible to tell

Premise & hypothesis: Is the premise "Three boys are together while one is taking a picture with his camera." true if "Boys are playing"?
A:
yes