Premise & hypothesis: Is the premise "A street vendor tending to bagels in food cart." true if "A street vendor is selling hot dogs."?
A: no

Premise & hypothesis: Is the premise "2 men in hiking gear descend down a stone staircase." true if "2 sad men in hiking gear descend down a stone staircase."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A blond-haired boy outside playing with a toy gun." true if "A four year old child playing with his sister."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A blond woman wearing glasses and a brown jacket is walking by wooden masks." true if "The woman has blond hair."?
A:
yes