This artist wrote “tell us when you first noticed the sky” in a collection with abstract dot-drawings called Acorn. “Anti-films” by this artist include slow-motion shots of burning matches. Viewers climb a ladder and use a magnifying glass to see a tiny “yes” on the ceiling in a piece by this artist. Performers enter a black bag where they can see but not be seen in a piece by this artist, which shares its name with their concept of “bagism.” Instructions like “keep coughing a year” are collected in this artist’s (*) Grapefruit. This artist invited the audience to remove pieces of her (-5[1])clothing in one performance. This artist formed a “plastic band” with her (10[1])husband, who posed nude with her in an Annie Leibovitz photo. For 10 points, name this Fluxus artist of Cut Piece who composed “Revolution 9” with John Lennon. ■END■