context: We doubt that Mary went to the garden. We doubt that Bernhard is green. It is certain that Greg is a frog. It is probably the case that if either Greg is a frog, or Bernhard is green, then John left the football. There is little chance that if either Greg is a frog, or Mary went to the garden, then Lily is a swan. It is highly unlikely that if Greg is a frog, and Bernhard is green, then Brian is a rhino.
hypothesis: Chances are slight that brian is a rhino, or Lily is a swan.
valid_hypothesis: Chances are slight that brian is a rhino, or Lily is a swan.
invalid_hypothesis: It is almost certain that brian is a rhino, or Lily is a swan.
hypothesis_assertion: Brian is a rhino, or Lily is a swan.