context: We doubt that Julius is green. It is certain that Sandra got the football. It is probably not the case that John went to the hallway. It is almost certain that if Sandra got the football, and Julius is green, then Greg is a swan. Chances are slight that if either Sandra got the football, or Julius is green, then Bernhard is a frog. There is almost no chance that if either Sandra got the football, or Julius is green, then Lily is yellow.
hypothesis: It is likely that lily is yellow, and Bernhard is a frog.
valid_hypothesis: It is impossible that lily is yellow, and Bernhard is a frog.
invalid_hypothesis: It is likely that lily is yellow, and Bernhard is a frog.
hypothesis_assertion: Lily is yellow, and Bernhard is a frog.