context: It is probable that John put down the milk. We believe that Lily is a rhino. It is improbable that Brian is a frog.
hypothesis: It is probably the case that either Brian is a frog, or Lily is a rhino.
valid_hypothesis: It is probably the case that either Brian is a frog, or Lily is a rhino.
invalid_hypothesis: It is improbable that either Brian is a frog, or Lily is a rhino.
hypothesis_assertion: Either Brian is a frog, or Lily is a rhino.