Premise & hypothesis: Is the premise "A women's roller derby team taking a break." true if "A group of couples take a break at the roller rink."?
A: no

Premise & hypothesis: Is the premise "A zebra is nibbling on some grass." true if "A zebra is not nibbling on grass."?
A: no

Premise & hypothesis: Is the premise "A man in a green shirt, holding a bike in front of him, looking towards an officer talking to several young men." true if "A man watches an officer discpline a group of young delinquents."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A large boat filled with people navigate through a still lake." true if "the boat was taking people on a tour"?
A:
it is not possible to tell