context: It is probably not the case that Jessica is a cat. It is likely that Greg is a swan. We doubt that Lily is a rhino.
hypothesis: There is little chance that either Greg is a swan, or Lily is a rhino.
valid_hypothesis: There is a better than even chance that either Greg is a swan, or Lily is a rhino.
invalid_hypothesis: There is little chance that either Greg is a swan, or Lily is a rhino.
hypothesis_assertion: Either Greg is a swan, or Lily is a rhino.