context: It is impossible that Bernhard is a rhino. It is highly likely that Julius is green. It is likely that Greg is a swan.
hypothesis: It is impossible that greg is a swan, and Bernhard is a rhino.
valid_hypothesis: It is impossible that greg is a swan, and Bernhard is a rhino.
invalid_hypothesis: It is almost certain that greg is a swan, and Bernhard is a rhino.
hypothesis_assertion: Greg is a swan, and Bernhard is a rhino.