context: Chances are slight that Julius is a lion. It is highly unlikely that John moved to the office. It is probably not the case that Greg is a frog. We believe that if Greg is a frog, and Julius is a lion, then Julie is in the bedroom. It is unlikely that if Julius is a lion, or Greg is a frog, then Bernhard is a swan. It is highly unlikely that if John moved to the office, and Julius is a lion, then Sandra dropped the apple.
hypothesis: There is a better than even chance that bernhard is a swan, or John moved to the office.
valid_hypothesis: Chances are slight that bernhard is a swan, or John moved to the office.
invalid_hypothesis: There is a better than even chance that bernhard is a swan, or John moved to the office.
hypothesis_assertion: Bernhard is a swan, or John moved to the office.