context: It is improbable that Mary dropped the milk. There is little chance that Gertrude is a mouse. There is little chance that Bernhard is a frog. It is highly likely that if either Bernhard is a frog, or Gertrude is a mouse, then Yann is tired. It is probable that if either Bernhard is a frog, or Gertrude is a mouse, then Brian is yellow. There is little chance that if Gertrude is a mouse, or Bernhard is a frog, then Julie is in the bedroom.
hypothesis: There is little chance that yann is tired, and Brian is yellow.
valid_hypothesis: There is little chance that yann is tired, and Brian is yellow.
invalid_hypothesis: It is certain that yann is tired, and Brian is yellow.
hypothesis_assertion: Yann is tired, and Brian is yellow.