context: It is probable that Greg is a swan. It is probable that John put down the milk. There is a very good chance that Sandra got the football. It is almost certain that if either Greg is a swan, or Sandra got the football, then Antoine is thirsty. It is unlikely that if Greg is a swan, and John put down the milk, then Lily is a frog. It is certain that if either Greg is a swan, or Sandra got the football, then Julius is a lion.
hypothesis: We believe that either Sandra got the football, or Lily is a frog.
valid_hypothesis: We believe that either Sandra got the football, or Lily is a frog.
invalid_hypothesis: We doubt that either Sandra got the football, or Lily is a frog.
hypothesis_assertion: Either Sandra got the football, or Lily is a frog.