context: There is a very good chance that Mary moved to the office. It is improbable that Brian is a rhino. It is probably the case that Sandra is in the hallway.
hypothesis: It is improbable that either Brian is a rhino, or Sandra is in the hallway.
valid_hypothesis: It is probably the case that either Brian is a rhino, or Sandra is in the hallway.
invalid_hypothesis: It is improbable that either Brian is a rhino, or Sandra is in the hallway.
hypothesis_assertion: Either Brian is a rhino, or Sandra is in the hallway.