context: It is impossible that Mary moved to the office. It is probably the case that Sandra took the football. Chances are slight that Lily is a swan. Chances are about even that if Lily is a swan, or Sandra took the football, then Daniel grabbed the milk. There is a better than even chance that if Sandra took the football, or Mary moved to the office, then Julius is a frog. There is little chance that if either Mary moved to the office, or Sandra took the football, then John dropped the apple.
hypothesis: It is highly likely that mary moved to the office, and Lily is a swan.
valid_hypothesis: It is impossible that mary moved to the office, and Lily is a swan.
invalid_hypothesis: It is highly likely that mary moved to the office, and Lily is a swan.
hypothesis_assertion: Mary moved to the office, and Lily is a swan.