context: It is probably the case that Mary went to the office. There is almost no chance that Greg is gray. It is improbable that Lily is yellow.
hypothesis: Chances are slight that lily is yellow, or Mary went to the office.
valid_hypothesis: We believe that lily is yellow, or Mary went to the office.
invalid_hypothesis: Chances are slight that lily is yellow, or Mary went to the office.
hypothesis_assertion: Lily is yellow, or Mary went to the office.