context: It is highly unlikely that Lily is yellow. There is little chance that Julius is a swan. It is probably the case that John left the apple. We doubt that if either John left the apple, or Julius is a swan, then Daniel dropped the milk. It is unlikely that if Lily is yellow, and Julius is a swan, then Mary went to the office. It is highly unlikely that if Lily is yellow, or Julius is a swan, then Greg is green.
hypothesis: There is little chance that greg is green, or Julius is a swan.
valid_hypothesis: There is little chance that greg is green, or Julius is a swan.
invalid_hypothesis: It is certain that greg is green, or Julius is a swan.
hypothesis_assertion: Greg is green, or Julius is a swan.