context: There is a very good chance that Bill went to the kitchen. It is probably the case that Greg is yellow. There is almost no chance that John got the football. It is highly likely that if either Bill went to the kitchen, or Greg is yellow, then Julius is green. It is probably the case that if Bill went to the kitchen, and Greg is yellow, then Bernhard is a lion. It is probable that if either Greg is yellow, or Bill went to the kitchen, then Gertrude is a mouse.
hypothesis: It is certain that either John got the football, or Bernhard is a lion.
valid_hypothesis: Chances are about even that either John got the football, or Bernhard is a lion.
invalid_hypothesis: It is certain that either John got the football, or Bernhard is a lion.
hypothesis_assertion: Either John got the football, or Bernhard is a lion.