Complex sentence: Whalley took a break from filming to bring up her two children with Kilmer: daughter Mercedes (born 29 October 1991, in Santa Fe, New Mexico), and son Jack who weas born on 6 June 1995.
Split into simpler sentences: Whalley took a break from filming to bring up her two children with Kilmer. Mercedes was born on 29 October 1991 in Santa Fe, New Mexico and her son Jack who was born on 6 June 1995.