context: Chances are about even that Julius is a frog. There is little chance that Mary went to the kitchen. It is likely that Jessica is a mouse. There is a very good chance that if Mary went to the kitchen, or Jessica is a mouse, then John moved to the garden. Chances are slight that if Julius is a frog, and Jessica is a mouse, then Lily is yellow. We believe that if Jessica is a mouse, and Mary went to the kitchen, then Brian is a lion.
hypothesis: It is probable that john moved to the garden, and Brian is a lion.
valid_hypothesis: It is highly unlikely that john moved to the garden, and Brian is a lion.
invalid_hypothesis: It is probable that john moved to the garden, and Brian is a lion.
hypothesis_assertion: John moved to the garden, and Brian is a lion.