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graffiti -- n. pictures or words painted or drawn on a wall, building, etc.
audience -- n. a group of people who gather together to listen to something (such as a concert) or watch something (such as a movie or play): the people who attend a performance
society -- n. people in general thought of as living together in organized communities with shared laws, traditions, and values
fantasy -- n. something that is produced by the imagination : an idea about doing something that is far removed from normal reality
