context: It is probably the case that Mary went to the bedroom. It is probably not the case that Lily is a lion. There is little chance that John took the apple. There is little chance that if John took the apple, and Lily is a lion, then Julius is a frog. It is likely that if Lily is a lion, or Mary went to the bedroom, then Bernhard is yellow. It is unlikely that if Lily is a lion, or John took the apple, then Greg is a rhino.
hypothesis: It is certain that either Greg is a rhino, or John took the apple.
valid_hypothesis: There is little chance that either Greg is a rhino, or John took the apple.
invalid_hypothesis: It is certain that either Greg is a rhino, or John took the apple.
hypothesis_assertion: Either Greg is a rhino, or John took the apple.