context: Chances are about even that Brian is yellow. It is probably the case that Bernhard is a rhino. It is improbable that Daniel put down the milk. Chances are slight that if Brian is yellow, and Bernhard is a rhino, then Julius is a frog. Chances are slight that if Daniel put down the milk, and Brian is yellow, then John went to the office. It is probably not the case that if Brian is yellow, or Bernhard is a rhino, then Lily is gray.
hypothesis: It is almost certain that john went to the office, and Brian is yellow.
valid_hypothesis: It is impossible that john went to the office, and Brian is yellow.
invalid_hypothesis: It is almost certain that john went to the office, and Brian is yellow.
hypothesis_assertion: John went to the office, and Brian is yellow.