context: Two boys are swimming underwater in a pool and a girl is swimming in the background.
hypothesis: Chances are about even that they are diving for coins on the bottom of the pool
valid_hypothesis: There is almost no chance that they are diving for coins on the bottom of the pool
invalid_hypothesis: Chances are about even that they are diving for coins on the bottom of the pool
hypothesis_assertion: They are diving for coins on the bottom of the pool