context: There is almost no chance that Bill went to the garden. It is likely that Fred is in the school. It is improbable that Mary got the apple. There is a better than even chance that if Fred is in the school, and Mary got the apple, then John moved to the office. There is a better than even chance that if either Bill went to the garden, or Fred is in the school, then Brian is green. It is probably the case that if Fred is in the school, and Bill went to the garden, then Daniel left the football.
hypothesis: Chances are about even that either Mary got the apple, or Brian is green.
valid_hypothesis: Chances are about even that either Mary got the apple, or Brian is green.
invalid_hypothesis: It is impossible that either Mary got the apple, or Brian is green.
hypothesis_assertion: Either Mary got the apple, or Brian is green.