context: We believe that Greg is a frog. It is improbable that Antoine is hungry. Chances are about even that Mary went to the kitchen. It is probably not the case that if either Antoine is hungry, or Mary went to the kitchen, then Lily is a rhino. It is likely that if Greg is a frog, and Antoine is hungry, then Sandra left the milk. There is a very good chance that if Antoine is hungry, or Mary went to the kitchen, then Bernhard is yellow.
hypothesis: It is likely that either Lily is a rhino, or Greg is a frog.
valid_hypothesis: It is likely that either Lily is a rhino, or Greg is a frog.
invalid_hypothesis: It is probably not the case that either Lily is a rhino, or Greg is a frog.
hypothesis_assertion: Either Lily is a rhino, or Greg is a frog.