context: It is improbable that Bernhard is a lion. It is highly unlikely that Sandra got the football. It is probably the case that Mary grabbed the milk.
hypothesis: It is certain that bernhard is a lion, and Sandra got the football.
valid_hypothesis: It is impossible that bernhard is a lion, and Sandra got the football.
invalid_hypothesis: It is certain that bernhard is a lion, and Sandra got the football.
hypothesis_assertion: Bernhard is a lion, and Sandra got the football.