context: It is highly unlikely that Jessica is a mouse. It is highly likely that Yann is tired. Chances are about even that Mary dropped the apple.
hypothesis: Chances are about even that mary dropped the apple, or Jessica is a mouse.
valid_hypothesis: Chances are about even that mary dropped the apple, or Jessica is a mouse.
invalid_hypothesis: There is almost no chance that mary dropped the apple, or Jessica is a mouse.
hypothesis_assertion: Mary dropped the apple, or Jessica is a mouse.