context: It is probably not the case that Bernhard is a frog. It is impossible that Brian is yellow. It is improbable that Mary went to the garden.
hypothesis: We believe that either Bernhard is a frog, or Brian is yellow.
valid_hypothesis: It is probably not the case that either Bernhard is a frog, or Brian is yellow.
invalid_hypothesis: We believe that either Bernhard is a frog, or Brian is yellow.
hypothesis_assertion: Either Bernhard is a frog, or Brian is yellow.