Is the premise "A group of people boards a bus." true if "A group of people are boarding a boat"?
no
Is the premise "A man has removed his shoes while sitting on a bench in the park and watching the fountain." true if "The man is barefoot."?
it is not possible to tell
Is the premise "One man riding a sail in water." true if "One man on the water"?
yes
Is the premise "A group of young children kick around a ball on a field with a body of water in the background." true if "A group of kids playing a game together."?
yes