context: It is certain that John moved to the garden. We believe that Lily is a rhino. We doubt that Mary went to the kitchen.
hypothesis: There is a very good chance that mary went to the kitchen, or Lily is a rhino.
valid_hypothesis: There is a very good chance that mary went to the kitchen, or Lily is a rhino.
invalid_hypothesis: Chances are slight that mary went to the kitchen, or Lily is a rhino.
hypothesis_assertion: Mary went to the kitchen, or Lily is a rhino.