context: It is highly likely that Lily is green. It is probably the case that Brian is a frog. It is likely that Mary went to the garden.
hypothesis: Chances are about even that mary went to the garden, and Brian is a frog.
valid_hypothesis: Chances are about even that mary went to the garden, and Brian is a frog.
invalid_hypothesis: It is certain that mary went to the garden, and Brian is a frog.
hypothesis_assertion: Mary went to the garden, and Brian is a frog.