context: It is improbable that Lily is gray. Chances are slight that Greg is green. It is probable that John picked up the apple.
hypothesis: There is a better than even chance that greg is green, and John picked up the apple.
valid_hypothesis: It is highly unlikely that greg is green, and John picked up the apple.
invalid_hypothesis: There is a better than even chance that greg is green, and John picked up the apple.
hypothesis_assertion: Greg is green, and John picked up the apple.