context: It is highly unlikely that Julius is a rhino. It is probably the case that Bernhard is a frog. There is a better than even chance that John got the milk.
hypothesis: We believe that julius is a rhino, and Bernhard is a frog.
valid_hypothesis: It is highly unlikely that julius is a rhino, and Bernhard is a frog.
invalid_hypothesis: We believe that julius is a rhino, and Bernhard is a frog.
hypothesis_assertion: Julius is a rhino, and Bernhard is a frog.