context: It is probably not the case that Mary put down the milk. We doubt that Brian is a swan. We doubt that Sumit is tired. Chances are about even that if Mary put down the milk, or Sumit is tired, then Greg is a frog. It is almost certain that if either Sumit is tired, or Brian is a swan, then Daniel left the football. It is unlikely that if Mary put down the milk, and Sumit is tired, then Lily is white.
hypothesis: It is probably not the case that brian is a swan, or Daniel left the football.
valid_hypothesis: It is probably not the case that brian is a swan, or Daniel left the football.
invalid_hypothesis: We believe that brian is a swan, or Daniel left the football.
hypothesis_assertion: Brian is a swan, or Daniel left the football.