context: It is improbable that Mary put down the apple. It is impossible that Bernhard is a swan. It is likely that Greg is a frog.
hypothesis: It is likely that either Bernhard is a swan, or Greg is a frog.
valid_hypothesis: It is likely that either Bernhard is a swan, or Greg is a frog.
invalid_hypothesis: Chances are slight that either Bernhard is a swan, or Greg is a frog.
hypothesis_assertion: Either Bernhard is a swan, or Greg is a frog.