context: It is likely that Winona is a mouse. We doubt that Julie is in the bedroom. Chances are slight that Brian is a lion. It is probably the case that if Brian is a lion, or Julie is in the bedroom, then John moved to the garden. It is probably not the case that if Winona is a mouse, and Brian is a lion, then Mary discarded the milk. It is almost certain that if either Winona is a mouse, or Brian is a lion, then Greg is a swan.
hypothesis: It is highly unlikely that mary discarded the milk, or Winona is a mouse.
valid_hypothesis: It is probably the case that mary discarded the milk, or Winona is a mouse.
invalid_hypothesis: It is highly unlikely that mary discarded the milk, or Winona is a mouse.
hypothesis_assertion: Mary discarded the milk, or Winona is a mouse.