context: Chances are about even that Greg is white. There is a very good chance that John got the football. There is a very good chance that Lily is yellow. It is probable that if John got the football, and Lily is yellow, then Mary went to the kitchen. There is a better than even chance that if either Lily is yellow, or Greg is white, then Julius is a frog. There is a very good chance that if Lily is yellow, and Greg is white, then Bernhard is green.
hypothesis: It is likely that greg is white, or Mary went to the kitchen.
valid_hypothesis: It is likely that greg is white, or Mary went to the kitchen.
invalid_hypothesis: There is almost no chance that greg is white, or Mary went to the kitchen.
hypothesis_assertion: Greg is white, or Mary went to the kitchen.