context: There is a very good chance that John left the apple. It is impossible that Brian is white. It is unlikely that Emily is a mouse. There is a better than even chance that if John left the apple, or Emily is a mouse, then Julius is a rhino. There is a very good chance that if Brian is white, or John left the apple, then Fred is in the bedroom. It is highly likely that if Brian is white, or John left the apple, then Jessica is a sheep.
hypothesis: There is a very good chance that either Brian is white, or John left the apple.
valid_hypothesis: There is a very good chance that either Brian is white, or John left the apple.
invalid_hypothesis: There is almost no chance that either Brian is white, or John left the apple.
hypothesis_assertion: Either Brian is white, or John left the apple.