context: It is impossible that Greg is a swan. There is little chance that Bernhard is a lion. There is little chance that John moved to the garden. It is highly likely that if either John moved to the garden, or Bernhard is a lion, then Julius is gray. There is a better than even chance that if either John moved to the garden, or Bernhard is a lion, then Brian is green. We believe that if Greg is a swan, or Bernhard is a lion, then Lily is a rhino.
hypothesis: It is impossible that julius is gray, and Greg is a swan.
valid_hypothesis: It is impossible that julius is gray, and Greg is a swan.
invalid_hypothesis: There is a better than even chance that julius is gray, and Greg is a swan.
hypothesis_assertion: Julius is gray, and Greg is a swan.