context: There is almost no chance that Greg is yellow. It is probable that Lily is green. It is probably the case that Bernhard is a swan. It is probably not the case that if Bernhard is a swan, and Lily is green, then Mary went to the hallway. It is impossible that if Lily is green, and Greg is yellow, then John left the football. It is unlikely that if Lily is green, or Bernhard is a swan, then Julius is a rhino.
hypothesis: It is impossible that bernhard is a swan, and John left the football.
valid_hypothesis: It is impossible that bernhard is a swan, and John left the football.
invalid_hypothesis: It is likely that bernhard is a swan, and John left the football.
hypothesis_assertion: Bernhard is a swan, and John left the football.