context: It is likely that Gertrude is a mouse. Chances are slight that John went to the kitchen. We believe that Mary dropped the milk. It is likely that if John went to the kitchen, and Gertrude is a mouse, then Bernhard is a frog. It is unlikely that if either John went to the kitchen, or Mary dropped the milk, then Daniel left the football. It is almost certain that if Mary dropped the milk, or John went to the kitchen, then Greg is green.
hypothesis: It is likely that bernhard is a frog, or Gertrude is a mouse.
valid_hypothesis: It is likely that bernhard is a frog, or Gertrude is a mouse.
invalid_hypothesis: We doubt that bernhard is a frog, or Gertrude is a mouse.
hypothesis_assertion: Bernhard is a frog, or Gertrude is a mouse.