context: It is highly likely that Brian is gray. It is highly unlikely that Mary went to the office. Chances are about even that Greg is a rhino.
hypothesis: It is highly likely that mary went to the office, or Brian is gray.
valid_hypothesis: It is highly likely that mary went to the office, or Brian is gray.
invalid_hypothesis: There is little chance that mary went to the office, or Brian is gray.
hypothesis_assertion: Mary went to the office, or Brian is gray.