context: We doubt that Daniel left the football. There is a better than even chance that John took the apple. It is certain that Lily is a frog. Chances are slight that if Daniel left the football, and John took the apple, then Greg is white. Chances are about even that if John took the apple, and Daniel left the football, then Julius is a swan. Chances are about even that if either Daniel left the football, or Lily is a frog, then Bill went to the bedroom.
hypothesis: It is almost certain that greg is white, and Bill went to the bedroom.
valid_hypothesis: It is impossible that greg is white, and Bill went to the bedroom.
invalid_hypothesis: It is almost certain that greg is white, and Bill went to the bedroom.
hypothesis_assertion: Greg is white, and Bill went to the bedroom.