context: A young man in a white hat is playing golf with an older man wearing a blue, long-sleeved shirt and khakis.
hypothesis: Chances are slight that there is an older man teaching his grandson how to play golf.
valid_hypothesis: Chances are slight that there is an older man teaching his grandson how to play golf.
invalid_hypothesis: There is a very good chance that there is an older man teaching his grandson how to play golf.
hypothesis_assertion: There is an older man teaching his grandson how to play golf.