Premise & hypothesis: Is the premise "A fluffy dog is wearing a green guard jacket for an elementary school." true if "There's a small dog in a jacket."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A man in a blue jacket shoveling snow around a Nissan Altima." true if "The man shovels snow around his Nissan while wearing a blue coat."?
A: yes

Premise & hypothesis: Is the premise "A person is dirt biking over rocks and water." true if "A person is riding a dirt bike."?
A: yes

Premise & hypothesis: Is the premise "Two men are dressed as mariachi musicians while playing their silver trumpets in front of a black car." true if "Nobody is playing"?
A:
no