context: Chances are slight that Brian is a swan. It is almost certain that Lily is a lion. It is likely that Sandra left the football. There is little chance that if Sandra left the football, or Brian is a swan, then Julius is white. There is a better than even chance that if either Lily is a lion, or Brian is a swan, then Mary got the apple. It is probable that if either Lily is a lion, or Sandra left the football, then Julie is in the bedroom.
hypothesis: It is almost certain that julius is white, or Lily is a lion.
valid_hypothesis: It is almost certain that julius is white, or Lily is a lion.
invalid_hypothesis: Chances are about even that julius is white, or Lily is a lion.
hypothesis_assertion: Julius is white, or Lily is a lion.