context: There is almost no chance that Greg is green. It is highly likely that Jessica is a sheep. It is certain that John left the apple. There is almost no chance that if John left the apple, and Greg is green, then Bernhard is white. We doubt that if either Greg is green, or Jessica is a sheep, then Lily is a frog. It is probably the case that if John left the apple, or Jessica is a sheep, then Mary went to the office.
hypothesis: It is impossible that bernhard is white, and Greg is green.
valid_hypothesis: It is impossible that bernhard is white, and Greg is green.
invalid_hypothesis: Chances are about even that bernhard is white, and Greg is green.
hypothesis_assertion: Bernhard is white, and Greg is green.