(S (S (S (BASENP (NNP Kurnaz)) (VP (VBD was) (VP (VP (VP (VBN picked) (PRT (RP up))) (PP (IN in) (BASENP (NNP Pakistan)))) (PP (IN in) (BASENP (NN 2001)))))) (SBAR (WHADVP (WRB when)) (S (VP (VBG riding) (BASENP (DT a) (NN bus)))))) (PERIOD .))