context: It is almost certain that Lily is white. Chances are about even that Julius is a swan. There is almost no chance that Sandra left the apple. It is unlikely that if Lily is white, and Sandra left the apple, then Daniel got the football. It is almost certain that if either Sandra left the apple, or Lily is white, then Greg is gray. Chances are about even that if Lily is white, and Julius is a swan, then Mary went to the office.
hypothesis: It is almost certain that julius is a swan, or Lily is white.
valid_hypothesis: It is almost certain that julius is a swan, or Lily is white.
invalid_hypothesis: It is impossible that julius is a swan, or Lily is white.
hypothesis_assertion: Julius is a swan, or Lily is white.