context: There is almost no chance that Mary went to the kitchen. We believe that Greg is gray. It is likely that Brian is a frog. It is likely that if Mary went to the kitchen, or Greg is gray, then Sandra grabbed the apple. It is probably the case that if either Mary went to the kitchen, or Brian is a frog, then Lily is a lion. It is highly unlikely that if Mary went to the kitchen, or Brian is a frog, then Gertrude is a mouse.
hypothesis: Chances are slight that lily is a lion, or Brian is a frog.
valid_hypothesis: It is probable that lily is a lion, or Brian is a frog.
invalid_hypothesis: Chances are slight that lily is a lion, or Brian is a frog.
hypothesis_assertion: Lily is a lion, or Brian is a frog.