context: Chances are about even that Winona is a mouse. It is almost certain that John left the milk. There is little chance that Emily is a mouse.
hypothesis: Chances are about even that either Emily is a mouse, or Winona is a mouse.
valid_hypothesis: Chances are about even that either Emily is a mouse, or Winona is a mouse.
invalid_hypothesis: It is almost certain that either Emily is a mouse, or Winona is a mouse.
hypothesis_assertion: Either Emily is a mouse, or Winona is a mouse.