Anchor: no kidding hobbies are supposed to be enjoyable they're not supposed to be difficult or or they're not supposed to make you less relaxed than when you began
Entailed: Hobbies are supposed to be easy, enjoyable, and relaxing. 
Contradiction: Hobbies should be stressful. 
Contradiction: A guitar player is performing in Goth attire.
Contradiction: It is possible that the product's performance fails to meet requirements more than once.
Contradiction: The girls at a concert.
Contradiction: A guy with sunglasses is singing with a microphone.