context: Chances are about even that Daniel left the football. There is a very good chance that Lily is a swan. It is highly likely that Greg is a frog. It is highly unlikely that if Daniel left the football, and Greg is a frog, then Bernhard is a lion. We believe that if Daniel left the football, and Lily is a swan, then Mary went to the bedroom. Chances are slight that if Lily is a swan, or Greg is a frog, then Julius is white.
hypothesis: It is probably not the case that bernhard is a lion, or Lily is a swan.
valid_hypothesis: There is a very good chance that bernhard is a lion, or Lily is a swan.
invalid_hypothesis: It is probably not the case that bernhard is a lion, or Lily is a swan.
hypothesis_assertion: Bernhard is a lion, or Lily is a swan.