Premise & hypothesis: Is the premise "A referee wearing skates and a helmet is mopping the floor of what looks to be a basketball court." true if "There was a roller derby tournament."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A group of four men carrying drums wearing brightly colored costumes walk in front of a crowd of people." true if "There is a parade going on."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A man in a tie walking past a bird in flight." true if "A man passes a flying animal."?
A: yes

Premise & hypothesis: Is the premise "A baseball player wearing a Houston uniform is about to throw a baseball in a stadium while spectators watch." true if "a baseball player is about the throw the ball while everyone is watching"?
A:
yes