context: It is probably the case that Bernhard is white. It is probably the case that Greg is a rhino. It is almost certain that Lily is a swan.
hypothesis: It is almost certain that either Greg is a rhino, or Bernhard is white.
valid_hypothesis: Chances are about even that either Greg is a rhino, or Bernhard is white.
invalid_hypothesis: It is almost certain that either Greg is a rhino, or Bernhard is white.
hypothesis_assertion: Either Greg is a rhino, or Bernhard is white.