context: It is probably the case that John moved to the office. It is improbable that Brian is gray. It is highly unlikely that Greg is yellow. Chances are slight that if Greg is yellow, and Brian is gray, then Sandra left the apple. It is probably the case that if John moved to the office, and Brian is gray, then Mary is in the garden. There is little chance that if Brian is gray, and John moved to the office, then Bernhard is white.
hypothesis: It is almost certain that greg is yellow, or Bernhard is white.
valid_hypothesis: It is highly unlikely that greg is yellow, or Bernhard is white.
invalid_hypothesis: It is almost certain that greg is yellow, or Bernhard is white.
hypothesis_assertion: Greg is yellow, or Bernhard is white.