context: It is probably not the case that John went to the hallway. We doubt that Mary took the apple. Chances are about even that Greg is white. There is almost no chance that if Mary took the apple, or Greg is white, then Lily is green. We doubt that if Mary took the apple, or Greg is white, then Daniel left the football. It is almost certain that if Mary took the apple, and John went to the hallway, then Gertrude is a wolf.
hypothesis: There is almost no chance that greg is white, and Lily is green.
valid_hypothesis: There is almost no chance that greg is white, and Lily is green.
invalid_hypothesis: We believe that greg is white, and Lily is green.
hypothesis_assertion: Greg is white, and Lily is green.