Is the premise "A woman is sitting on a couch reading a book." true if "A woman reads"?
yes
Is the premise "A man jumps off of a small stone bridge while three children and a woman watch him." true if "A man leaps from a bridge while his wife and children watch"?
it is not possible to tell
Is the premise "An Indian houseboat sails down a river past a house." true if "The owners are moving to a new location."?
it is not possible to tell
Is the premise "A man is preparing to throw a bowling ball." true if "The man is a great bowler."?
it is not possible to tell