context: It is probably not the case that Gertrude is a mouse. It is likely that Bernhard is a lion. Chances are slight that Mary moved to the garden. It is probable that if either Mary moved to the garden, or Gertrude is a mouse, then Bill got the milk there. It is certain that if either Bernhard is a lion, or Mary moved to the garden, then Brian is green. It is probably not the case that if Mary moved to the garden, and Gertrude is a mouse, then Greg is a rhino.
hypothesis: It is probably not the case that gertrude is a mouse, or Mary moved to the garden.
valid_hypothesis: It is probably not the case that gertrude is a mouse, or Mary moved to the garden.
invalid_hypothesis: It is certain that gertrude is a mouse, or Mary moved to the garden.
hypothesis_assertion: Gertrude is a mouse, or Mary moved to the garden.