context: It is probably the case that Greg is green. It is probably not the case that Mary went to the office. Chances are about even that Fred is in the bedroom. It is improbable that if Mary went to the office, or Fred is in the bedroom, then Jessica is a wolf. We doubt that if Mary went to the office, or Fred is in the bedroom, then Daniel got the apple. It is certain that if either Fred is in the bedroom, or Greg is green, then John put down the milk.
hypothesis: Chances are about even that either Mary went to the office, or Fred is in the bedroom.
valid_hypothesis: Chances are about even that either Mary went to the office, or Fred is in the bedroom.
invalid_hypothesis: It is impossible that either Mary went to the office, or Fred is in the bedroom.
hypothesis_assertion: Either Mary went to the office, or Fred is in the bedroom.