context: Chances are slight that Fred moved to the office. It is probable that Sandra put down the milk. It is almost certain that Lily is a frog. It is probably the case that if either Lily is a frog, or Fred moved to the office, then Julius is gray. It is probable that if Fred moved to the office, or Lily is a frog, then Mary went to the hallway. There is a better than even chance that if either Lily is a frog, or Sandra put down the milk, then Bernhard is a swan.
hypothesis: There is a better than even chance that either Bernhard is a swan, or Julius is gray.
valid_hypothesis: There is a better than even chance that either Bernhard is a swan, or Julius is gray.
invalid_hypothesis: It is highly unlikely that either Bernhard is a swan, or Julius is gray.
hypothesis_assertion: Either Bernhard is a swan, or Julius is gray.