(S (S (S (BASENP (NNP Bin) (NNP Laden)) (VP (VP (VP (VBD appeared) (PP (IN for) (BASENP (DT the) (JJ first) (NN time)))) (PP (IN in) (BASENP (DT a) (NN video)))) (PP (IN since) (BASENP (NN 2004))))) (SBAR (WHADVP (WRB when)) (S (BASENP (PRP he)) (VP (VP (VBD released) (BASENP (DT a) (NN video))) (PP (IN on) (NP (BASENP (NNP September) (NN 7)) (COMMA ,) (BASENP (NN 2007)))))))) (PERIOD .))