context: We believe that Bernhard is a lion. It is almost certain that Mary went to the garden. It is probably the case that Gertrude is a wolf. Chances are slight that if Bernhard is a lion, or Gertrude is a wolf, then Lily is a swan. We doubt that if Bernhard is a lion, and Gertrude is a wolf, then Sandra left the milk. It is probably the case that if Mary went to the garden, and Gertrude is a wolf, then Greg is white.
hypothesis: Chances are about even that either Bernhard is a lion, or Gertrude is a wolf.
valid_hypothesis: Chances are about even that either Bernhard is a lion, or Gertrude is a wolf.
invalid_hypothesis: It is impossible that either Bernhard is a lion, or Gertrude is a wolf.
hypothesis_assertion: Either Bernhard is a lion, or Gertrude is a wolf.