context: It is impossible that Sandra left the football. It is highly unlikely that Julius is a swan. It is almost certain that Bernhard is gray. It is likely that if Julius is a swan, and Sandra left the football, then Lily is a frog. It is highly likely that if either Sandra left the football, or Julius is a swan, then Greg is yellow. It is unlikely that if either Sandra left the football, or Bernhard is gray, then Mary went to the office.
hypothesis: It is almost certain that mary went to the office, and Bernhard is gray.
valid_hypothesis: It is unlikely that mary went to the office, and Bernhard is gray.
invalid_hypothesis: It is almost certain that mary went to the office, and Bernhard is gray.
hypothesis_assertion: Mary went to the office, and Bernhard is gray.