context: It is improbable that John left the football. There is almost no chance that Brian is white. Chances are slight that Daniel is in the office. It is probably the case that if either John left the football, or Daniel is in the office, then Greg is gray. It is impossible that if either John left the football, or Daniel is in the office, then Mary went to the bedroom. There is a very good chance that if Daniel is in the office, or Brian is white, then Bernhard is a swan.
hypothesis: There is a very good chance that either Daniel is in the office, or Greg is gray.
valid_hypothesis: There is little chance that either Daniel is in the office, or Greg is gray.
invalid_hypothesis: There is a very good chance that either Daniel is in the office, or Greg is gray.
hypothesis_assertion: Either Daniel is in the office, or Greg is gray.