context: It is probably the case that Brian is green. It is probably not the case that Bernhard is a rhino. It is probably not the case that John took the milk.
hypothesis: It is unlikely that brian is green, and John took the milk.
valid_hypothesis: It is unlikely that brian is green, and John took the milk.
invalid_hypothesis: It is probably the case that brian is green, and John took the milk.
hypothesis_assertion: Brian is green, and John took the milk.