context: We doubt that Emily is a cat. There is little chance that Bernhard is a rhino. It is probably the case that Winona is a cat. It is almost certain that if Bernhard is a rhino, and Winona is a cat, then Sandra left the football. Chances are about even that if Emily is a cat, or Winona is a cat, then John moved to the office. It is certain that if either Winona is a cat, or Emily is a cat, then Greg is a swan.
hypothesis: It is impossible that either Winona is a cat, or Bernhard is a rhino.
valid_hypothesis: It is likely that either Winona is a cat, or Bernhard is a rhino.
invalid_hypothesis: It is impossible that either Winona is a cat, or Bernhard is a rhino.
hypothesis_assertion: Either Winona is a cat, or Bernhard is a rhino.