premise: A man wearing a white shirt and a hat, riding his bike, makes an obscene gesture to the photographer. hypothesis: The photographer has angered that bike rider somehow.
neutral: It is not known whether it is a random public act of indecency until mentioned that the photographer has angered him specifically.|neutral: the man does not need to be angered to make an obscene gesture.|neutral: The biker can make a gesture without the photographer having done anything that angered the biker.