context: It is impossible that John dropped the milk. It is probably not the case that Bernhard is a rhino. It is probable that Lily is a frog.
hypothesis: It is probable that either Lily is a frog, or John dropped the milk.
valid_hypothesis: It is probable that either Lily is a frog, or John dropped the milk.
invalid_hypothesis: It is improbable that either Lily is a frog, or John dropped the milk.
hypothesis_assertion: Either Lily is a frog, or John dropped the milk.