(S (S (S (NP (BASENP (NNP Bert)) (PRN (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBD had) (VP (VBN been) (NP (BASENP (DT the) (NN father)) (PP (IN of) (BASENP (NNP Richards)))))))) (COMMA ,))) (VP (VBD died))) (SBAR (WHADVP (WRB when)) (S (BASENP (PRP he)) (VP (VP (VBD was) (BASENP (NN 84))) (COMMA ,) (PP (ADVP (RB back)) (PP (IN in) (BASENP (NN 2002)))))))) (PERIOD .))