Is the premise "A man in a gray shirt holding a camera." true if "There are several good pictures in the camera's memory already."?
it is not possible to tell
Is the premise "A woman wearing brown boots and holding a red cup walks through a large outdoor crowd." true if "Woman walking through crowd"?
yes
Is the premise "A man is a white lab coat with safety glass pouring liquid from one glass to another while a woman looks on." true if "The man is holding a glass."?
yes
Is the premise "A boat sailing past the rising sun." true if "A boat is sailing towards the East."?
it is not possible to tell