context: A man in a black jacket plays a black electric guitar and sings.
hypothesis: There is a very good chance that a man is playing whose is in a band is playing an electric guitar.
valid_hypothesis: There is a very good chance that a man is playing whose is in a band is playing an electric guitar.
invalid_hypothesis: It is highly unlikely that a man is playing whose is in a band is playing an electric guitar.
hypothesis_assertion: A man is playing whose is in a band is playing an electric guitar.