context: It is almost certain that Greg is a lion. It is unlikely that Julius is a frog. It is almost certain that Bernhard is a rhino.
hypothesis: We believe that either Bernhard is a rhino, or Julius is a frog.
valid_hypothesis: We believe that either Bernhard is a rhino, or Julius is a frog.
invalid_hypothesis: It is impossible that either Bernhard is a rhino, or Julius is a frog.
hypothesis_assertion: Either Bernhard is a rhino, or Julius is a frog.