Oprah Winfrey says she will close the school for underprivileged girls she set up in South Africa two decades ago at the end of next yearOprah Winfrey says she will close her school for girls in South Africa next yearFILE - Oprah Winfrey talks to students at her Leadership Academy for Girls at Henley-On-Klip South Africa, Friday, Jan. 13, 2012 on the eve of the first graduation at her school. (AP Photo/Denis Farrell, file)FILE - Oprah Winfrey talks to students at her Leadership Academy for Girls at Henley-On-Klip South Africa, Friday, Jan. 13, 2012 on the eve of the first graduation at her school. (AP Photo/Denis Farrell, file)FILE - Oprah Winfrey talks to students at her Leadership Academy for Girls at Henley-On-Klip South Africa, Friday, Jan. 13, 2012 on the eve of the first graduation at her school. (AP Photo/Denis Farrell, file)JOHANNESBURG -- JOHANNESBURG (AP) — Oprah Winfrey says she will close the school for underprivileged girls she set up in South Africa two decades ago at the end of next year. Winfrey opened the Oprah Winfrey Leadership Academy for Girls in 2007 after being inspired by conversations with former South African President Nelson Mandela about the transformative power of educating girls.