(S (S (BASENP (PRP He)) (VP (VBZ has) (VP (ADVP (RB also)) (VP (VBN admitted) (PP (TO to) (S (VP (VBG being) (VP (VP (VBN addicted) (PP (TO to) (BASENP (NN pornography)))) (PP (IN for) (BASENP (QP (RB over) (NN 16)) (NNS years))))))))))) (PERIOD .))