context: Chances are about even that Brian is gray. It is improbable that Bernhard is a rhino. It is impossible that Mary went to the kitchen.
hypothesis: It is probably the case that mary went to the kitchen, or Bernhard is a rhino.
valid_hypothesis: Chances are slight that mary went to the kitchen, or Bernhard is a rhino.
invalid_hypothesis: It is probably the case that mary went to the kitchen, or Bernhard is a rhino.
hypothesis_assertion: Mary went to the kitchen, or Bernhard is a rhino.