context: There is almost no chance that Bernhard is a rhino. It is improbable that Bill went to the garden. It is improbable that Mary put down the milk.
hypothesis: There is almost no chance that bill went to the garden, and Mary put down the milk.
valid_hypothesis: There is almost no chance that bill went to the garden, and Mary put down the milk.
invalid_hypothesis: There is a better than even chance that bill went to the garden, and Mary put down the milk.
hypothesis_assertion: Bill went to the garden, and Mary put down the milk.