context: It is highly unlikely that Lily is a swan. There is a very good chance that Brian is a rhino. We believe that Julius is gray. It is probably the case that if Julius is gray, or Lily is a swan, then Mary went to the garden. There is little chance that if either Lily is a swan, or Brian is a rhino, then Bernhard is a frog. There is a better than even chance that if Lily is a swan, or Brian is a rhino, then John moved to the office.
hypothesis: Chances are about even that john moved to the office, or Lily is a swan.
valid_hypothesis: Chances are about even that john moved to the office, or Lily is a swan.
invalid_hypothesis: It is highly unlikely that john moved to the office, or Lily is a swan.
hypothesis_assertion: John moved to the office, or Lily is a swan.