context: Chances are slight that Greg is a swan. It is probably the case that Bernhard is gray. There is almost no chance that John went to the garden.
hypothesis: It is highly unlikely that greg is a swan, and Bernhard is gray.
valid_hypothesis: It is highly unlikely that greg is a swan, and Bernhard is gray.
invalid_hypothesis: It is highly likely that greg is a swan, and Bernhard is gray.
hypothesis_assertion: Greg is a swan, and Bernhard is gray.