context: It is highly unlikely that Mary went to the hallway. It is highly unlikely that Greg is green. It is impossible that Brian is a frog. There is a better than even chance that if either Mary went to the hallway, or Greg is green, then John moved to the garden. There is a very good chance that if Greg is green, and Mary went to the hallway, then Julius is green. Chances are about even that if Brian is a frog, and Greg is green, then Bernhard is gray.
hypothesis: There is a very good chance that either John moved to the garden, or Julius is green.
valid_hypothesis: It is highly unlikely that either John moved to the garden, or Julius is green.
invalid_hypothesis: There is a very good chance that either John moved to the garden, or Julius is green.
hypothesis_assertion: Either John moved to the garden, or Julius is green.