context: It is almost certain that Bernhard is a frog. It is improbable that Greg is a swan. There is little chance that Lily is white.
hypothesis: It is probably the case that bernhard is a frog, and Greg is a swan.
valid_hypothesis: There is little chance that bernhard is a frog, and Greg is a swan.
invalid_hypothesis: It is probably the case that bernhard is a frog, and Greg is a swan.
hypothesis_assertion: Bernhard is a frog, and Greg is a swan.