context: We doubt that Sumit is thirsty. Chances are about even that Mary got the football. There is almost no chance that Julius is a rhino. Chances are about even that if Mary got the football, or Sumit is thirsty, then Greg is gray. It is improbable that if Sumit is thirsty, and Julius is a rhino, then John went to the hallway. It is probably the case that if Julius is a rhino, and Mary got the football, then Brian is a lion.
hypothesis: Chances are about even that greg is gray, or Sumit is thirsty.
valid_hypothesis: Chances are about even that greg is gray, or Sumit is thirsty.
invalid_hypothesis: It is certain that greg is gray, or Sumit is thirsty.
hypothesis_assertion: Greg is gray, or Sumit is thirsty.