context: It is highly likely that Greg is a rhino. There is little chance that Brian is a frog. It is impossible that Bernhard is green. There is a better than even chance that if Greg is a rhino, and Bernhard is green, then Gertrude is a mouse. It is likely that if either Brian is a frog, or Bernhard is green, then John left the apple. It is impossible that if either Bernhard is green, or Brian is a frog, then Mary moved to the office.
hypothesis: It is highly likely that gertrude is a mouse, or Greg is a rhino.
valid_hypothesis: It is highly likely that gertrude is a mouse, or Greg is a rhino.
invalid_hypothesis: It is unlikely that gertrude is a mouse, or Greg is a rhino.
hypothesis_assertion: Gertrude is a mouse, or Greg is a rhino.