context: It is probably the case that Lily is white. It is highly unlikely that Fred went to the garden. It is highly unlikely that Brian is a lion.
hypothesis: It is unlikely that fred went to the garden, or Lily is white.
valid_hypothesis: It is likely that fred went to the garden, or Lily is white.
invalid_hypothesis: It is unlikely that fred went to the garden, or Lily is white.
hypothesis_assertion: Fred went to the garden, or Lily is white.