Anita Nall
Nadia Anita Louise Nall ( born July 21 , 1976 ) , also known by her married name Anita Nall-Richesson , is an American former competition swimmer , Olympic champion , and former world record-holder . 
<triplet> Anita Nall <subj> July 21, 1976 <obj> date of birth <subj> swimmer <obj> sport