context: We believe that Emily is a mouse. It is certain that Mary left the milk. It is improbable that John went to the office. There is little chance that if Mary left the milk, and John went to the office, then Julius is a swan. Chances are slight that if either Mary left the milk, or John went to the office, then Lily is a frog. There is a very good chance that if Emily is a mouse, and John went to the office, then Bernhard is yellow.
hypothesis: There is a very good chance that bernhard is yellow, or Lily is a frog.
valid_hypothesis: It is unlikely that bernhard is yellow, or Lily is a frog.
invalid_hypothesis: There is a very good chance that bernhard is yellow, or Lily is a frog.
hypothesis_assertion: Bernhard is yellow, or Lily is a frog.