context: Chances are slight that Greg is yellow. It is probably the case that Jeff went to the garden. It is likely that John got the milk. There is a better than even chance that if John got the milk, or Greg is yellow, then Emily is a cat. There is almost no chance that if either Jeff went to the garden, or Greg is yellow, then Lily is a swan. We believe that if John got the milk, and Greg is yellow, then Bernhard is gray.
hypothesis: It is highly unlikely that jeff went to the garden, and Bernhard is gray.
valid_hypothesis: It is highly unlikely that jeff went to the garden, and Bernhard is gray.
invalid_hypothesis: We believe that jeff went to the garden, and Bernhard is gray.
hypothesis_assertion: Jeff went to the garden, and Bernhard is gray.