context: We doubt that Daniel is in the garden. There is a better than even chance that Brian is a rhino. It is improbable that Bernhard is a lion.
hypothesis: It is highly unlikely that brian is a rhino, and Bernhard is a lion.
valid_hypothesis: It is highly unlikely that brian is a rhino, and Bernhard is a lion.
invalid_hypothesis: It is certain that brian is a rhino, and Bernhard is a lion.
hypothesis_assertion: Brian is a rhino, and Bernhard is a lion.