Complex sentence: On June 1,1991, the station changed its call sign to WJWF-FM, on April 1,1993 to WQNN, and on March 1,1996, to the current WSMS.
Split into simpler sentences: On June 1,1991, the station changed its call sign to WJWF-FM. On April 1,1993, the station changed its call sign again to WQNN, and on March 1,1996, to the current WSMS.