context: There is almost no chance that Bernhard is a rhino. It is probably the case that Greg is a swan. It is probably the case that John got the milk.
hypothesis: It is certain that greg is a swan, and John got the milk.
valid_hypothesis: Chances are about even that greg is a swan, and John got the milk.
invalid_hypothesis: It is certain that greg is a swan, and John got the milk.
hypothesis_assertion: Greg is a swan, and John got the milk.