context: A gray-haired man rides a bike in front of a bus advertising Ironman.
hypothesis: It is likely that an older man rides his bike and is almost hit by a bus because he is looking at the Ironman poster.
valid_hypothesis: There is almost no chance that an older man rides his bike and is almost hit by a bus because he is looking at the Ironman poster.
invalid_hypothesis: It is likely that an older man rides his bike and is almost hit by a bus because he is looking at the Ironman poster.
hypothesis_assertion: An older man rides his bike and is almost hit by a bus because he is looking at the Ironman poster.