context: It is probably not the case that Lily is a rhino. It is highly likely that Greg is gray. It is unlikely that Winona is a mouse. It is probably not the case that if Winona is a mouse, and Lily is a rhino, then Brian is white. It is probably not the case that if Lily is a rhino, and Winona is a mouse, then Daniel left the milk. There is almost no chance that if either Greg is gray, or Winona is a mouse, then John went to the hallway.
hypothesis: It is likely that john went to the hallway, and Greg is gray.
valid_hypothesis: There is almost no chance that john went to the hallway, and Greg is gray.
invalid_hypothesis: It is likely that john went to the hallway, and Greg is gray.
hypothesis_assertion: John went to the hallway, and Greg is gray.