(S (S (BASENP (NNP Langham)) (VP (VBD refused) (S (VP (TO to) (VP (VB answer) (NP (BASENP (NNS questions)) (PP (IN about) (NP (BASENP (JJ certain) (NNS images)) (VP (VBN found) (PP (IN on) (BASENP (PRPD his) (NN computer)))))))))))) (PERIOD .))