context: It is improbable that Brian is gray. It is highly unlikely that John went to the hallway. It is impossible that Lily is white. It is highly unlikely that if either Lily is white, or John went to the hallway, then Jason is bored. There is a better than even chance that if either Brian is gray, or Lily is white, then Mary moved to the garden. It is highly likely that if John went to the hallway, and Brian is gray, then Julius is a rhino.
hypothesis: It is likely that brian is gray, or Mary moved to the garden.
valid_hypothesis: It is improbable that brian is gray, or Mary moved to the garden.
invalid_hypothesis: It is likely that brian is gray, or Mary moved to the garden.
hypothesis_assertion: Brian is gray, or Mary moved to the garden.