context: It is highly unlikely that John got the apple. There is little chance that Greg is green. We doubt that Lily is yellow. There is a very good chance that if Lily is yellow, or Greg is green, then Brian is a frog. It is almost certain that if either Lily is yellow, or John got the apple, then Mary picked up the milk. There is a very good chance that if either John got the apple, or Greg is green, then Julius is white.
hypothesis: It is probably the case that greg is green, or Mary picked up the milk.
valid_hypothesis: It is probably not the case that greg is green, or Mary picked up the milk.
invalid_hypothesis: It is probably the case that greg is green, or Mary picked up the milk.
hypothesis_assertion: Greg is green, or Mary picked up the milk.