Premise & hypothesis: Is the premise "Little boys in white karate uniforms performing their martial arts indoors." true if "A group of little boys are participating in a martial arts tournament indoors."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "a man in a store jumping across a shopping cart" true if "the man doesn't know how to jump"?
A: no

Premise & hypothesis: Is the premise "Two young boys practicing the art of karate." true if "The boys are cooking pizza."?
A: no

Premise & hypothesis: Is the premise "People walking and one in a wheelchair wearing a black jacket." true if "a man is in a wheelchair"?
A:
yes