Yoko Ono unveils her first permanent US art installation

Yoko Ono, whose last recorded song with John Lennon was inspired by Chicago, unveiled here Tuesday the final piece of her first permanent US art installation. The sculpture, which is on display at The Art Institute, is entitled "Mended Petal." It is a tall representation of a stainless steel lotus blossom petal. A group of 12 similar petals, comprising a separate sculpture entitled "Skylanding," was unveiled Monday in Jackson Park, an expansive urban setting on Chicago's South Side and the futur