context: A young man, wearing a T-shirt that says Joplin, plays the guitar in front of a large amplifier.
hypothesis: It is almost certain that the man is a Janice Joplin fan.
valid_hypothesis: It is almost certain that the man is a Janice Joplin fan.
invalid_hypothesis: There is little chance that the man is a Janice Joplin fan.
hypothesis_assertion: The man is a Janice Joplin fan.