context: Chances are slight that Jeff moved to the office. There is little chance that Sandra grabbed the milk. There is a very good chance that Mary got the football.
hypothesis: It is probably not the case that either Mary got the football, or Jeff moved to the office.
valid_hypothesis: We believe that either Mary got the football, or Jeff moved to the office.
invalid_hypothesis: It is probably not the case that either Mary got the football, or Jeff moved to the office.
hypothesis_assertion: Either Mary got the football, or Jeff moved to the office.