context: It is likely that Bernhard is a rhino. There is little chance that Greg is a swan. It is probably the case that Julius is gray.
hypothesis: It is probable that either Greg is a swan, or Bernhard is a rhino.
valid_hypothesis: It is probable that either Greg is a swan, or Bernhard is a rhino.
invalid_hypothesis: It is impossible that either Greg is a swan, or Bernhard is a rhino.
hypothesis_assertion: Either Greg is a swan, or Bernhard is a rhino.