context: We believe that Greg is green. It is probable that Mary went to the garden. Chances are slight that Bernhard is a lion. It is unlikely that if Greg is green, or Bernhard is a lion, then Fred left the football. It is almost certain that if Bernhard is a lion, and Mary went to the garden, then Lily is a rhino. Chances are slight that if Mary went to the garden, and Greg is green, then Brian is a swan.
hypothesis: It is highly unlikely that mary went to the garden, or Brian is a swan.
valid_hypothesis: It is likely that mary went to the garden, or Brian is a swan.
invalid_hypothesis: It is highly unlikely that mary went to the garden, or Brian is a swan.
hypothesis_assertion: Mary went to the garden, or Brian is a swan.