context: Chances are about even that Greg is yellow. It is almost certain that John went to the office. Chances are about even that Gertrude is a sheep.
hypothesis: It is improbable that greg is yellow, or John went to the office.
valid_hypothesis: It is almost certain that greg is yellow, or John went to the office.
invalid_hypothesis: It is improbable that greg is yellow, or John went to the office.
hypothesis_assertion: Greg is yellow, or John went to the office.