Is the premise "A camper sets down his backpack to rest." true if "The camper is sitting down next to his backpack."?
it is not possible to tell
Is the premise "Three men are standing in a police boat with many rocks behind them." true if "The men are standing on a dock."?
no
Is the premise "Construction worker bending over" true if "A construction worker is reaching for something"?
yes
Is the premise "A cyclist is jumping off a wooden ramp beside an arched window." true if "A stunt bicyclist is practicing a trick."?
it is not possible to tell