context: It is probably the case that Brian is a rhino. It is improbable that Greg is yellow. It is almost certain that Bill put down the milk.
hypothesis: It is improbable that greg is yellow, or Brian is a rhino.
valid_hypothesis: We believe that greg is yellow, or Brian is a rhino.
invalid_hypothesis: It is improbable that greg is yellow, or Brian is a rhino.
hypothesis_assertion: Greg is yellow, or Brian is a rhino.