Is the premise "A worker is at the bottom of an outdoor flight of steps using power tools on a makeshift work surface which consists of wood boards that are on top of a couple of a-frame stands." true if "A worker is working on a board."?
yes
Is the premise "A female singer and male guitarist on stage." true if "A female singer and a male guitarist are performing in front of 7 people."?
it is not possible to tell
Is the premise "A little girl eats a hotdog with her hand." true if "A little girl is eating pancakes."?
no
Is the premise "A large brown dog is playing tug-of-war with a large black dog." true if "Two dogs are playing outside."?
it is not possible to tell