context: It is likely that Julius is gray. It is probably the case that Mary went to the bedroom. It is improbable that Sandra got the football. It is impossible that if either Sandra got the football, or Mary went to the bedroom, then Emily is a cat. We doubt that if Mary went to the bedroom, or Sandra got the football, then Brian is yellow. It is probable that if Sandra got the football, and Julius is gray, then Greg is a swan.
hypothesis: There is a very good chance that emily is a cat, or Greg is a swan.
valid_hypothesis: It is highly unlikely that emily is a cat, or Greg is a swan.
invalid_hypothesis: There is a very good chance that emily is a cat, or Greg is a swan.
hypothesis_assertion: Emily is a cat, or Greg is a swan.