context: We doubt that Bernhard is a frog. It is improbable that John put down the milk. It is probably the case that Brian is a swan.
hypothesis: It is highly unlikely that brian is a swan, or Bernhard is a frog.
valid_hypothesis: We believe that brian is a swan, or Bernhard is a frog.
invalid_hypothesis: It is highly unlikely that brian is a swan, or Bernhard is a frog.
hypothesis_assertion: Brian is a swan, or Bernhard is a frog.