context: It is likely that Sumit is thirsty. It is unlikely that John went to the kitchen. It is probably not the case that Gertrude is a wolf. Chances are slight that if Sumit is thirsty, or Gertrude is a wolf, then Greg is yellow. It is unlikely that if John went to the kitchen, or Gertrude is a wolf, then Bernhard is a lion. It is improbable that if Gertrude is a wolf, and Sumit is thirsty, then Julius is gray.
hypothesis: It is impossible that greg is yellow, and Julius is gray.
valid_hypothesis: It is impossible that greg is yellow, and Julius is gray.
invalid_hypothesis: It is likely that greg is yellow, and Julius is gray.
hypothesis_assertion: Greg is yellow, and Julius is gray.