context: Chances are about even that Lily is white. It is almost certain that Sandra left the milk. Chances are about even that John got the football.
hypothesis: We believe that john got the football, or Lily is white.
valid_hypothesis: We believe that john got the football, or Lily is white.
invalid_hypothesis: It is highly unlikely that john got the football, or Lily is white.
hypothesis_assertion: John got the football, or Lily is white.