Is the premise "A middle-aged man in a sleeveless shirt covers his face with his hand." true if "A man has placed the palm of his hand on his face."?
it is not possible to tell
Is the premise "People passing through an open market, while an older woman leans in front of a chilled bin on=f seafood." true if "People are in a market"?
yes
Is the premise "Three ball players in uniform stretch on a striped green surface in front of a large crowd and signage." true if "The ball players are about to eat dinner"?
no
Is the premise "A smiling man of Asian descent is sitting in his slightly-untidy cubicle at a desktop computer with several windows open, both hands poised in proper keyboarding position." true if "A man is working at a desk."?
yes