context: Chances are slight that John went to the kitchen. We doubt that Bernhard is a swan. It is highly likely that Lily is a rhino. It is almost certain that if Bernhard is a swan, and John went to the kitchen, then Julius is green. It is almost certain that if Lily is a rhino, and John went to the kitchen, then Greg is yellow. There is a better than even chance that if either Bernhard is a swan, or Lily is a rhino, then Brian is gray.
hypothesis: It is highly likely that greg is yellow, and Brian is gray.
valid_hypothesis: It is highly unlikely that greg is yellow, and Brian is gray.
invalid_hypothesis: It is highly likely that greg is yellow, and Brian is gray.
hypothesis_assertion: Greg is yellow, and Brian is gray.