(S (S (BASENP (PRPD His) (NN death)) (VP (VBD was) (VP (VBN announced) (PP (IN by) (NP (NP (BASENP (PRPD his) (NN son)) (PRN (COMMA ,) (VP (ADVP (RB also)) (VP (VBN named) (S (BASENP (NNP Leonard) (NNP Skinner))))) (COMMA ,))) (SBAR (WHNP (WP who)) (S (ADVP (RB also)) (VP (VBD said) (SBAR (IN that) (S (BASENP (PRP he)) (VP (VBD was) (VP (VBG suffering) (PP (IN from) (NP (BASENP (NNP Alzheimer) (POS 's)) (NN disease))))))))))))))) (PERIOD .))