context: It is impossible that Julius is a swan. There is a better than even chance that Brian is a rhino. It is probably not the case that Bill left the milk. It is probable that if Julius is a swan, or Bill left the milk, then John picked up the apple. There is almost no chance that if either Brian is a rhino, or Julius is a swan, then Bernhard is green. It is highly unlikely that if either Julius is a swan, or Bill left the milk, then Mary went to the hallway.
hypothesis: There is a very good chance that either Mary went to the hallway, or Bernhard is green.
valid_hypothesis: There is almost no chance that either Mary went to the hallway, or Bernhard is green.
invalid_hypothesis: There is a very good chance that either Mary went to the hallway, or Bernhard is green.
hypothesis_assertion: Either Mary went to the hallway, or Bernhard is green.