context: Three men on mountain bikes go over a sand hill.
hypothesis: It is likely that men on bikes go over a sand hill to get to the finish line.
valid_hypothesis: It is likely that men on bikes go over a sand hill to get to the finish line.
invalid_hypothesis: Chances are slight that men on bikes go over a sand hill to get to the finish line.
hypothesis_assertion: Men on bikes go over a sand hill to get to the finish line.