Bin Ladin was prepared to pick up where he had left off in Sudan.
( ( Bin Ladin ) ( ( was ( prepared ( to ( ( pick up ) ( where ( he ( had ( ( left off ) ( in Sudan ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Bin) (NNP Ladin)) (VP (VBD was) (VP (VBN prepared) (S (VP (TO to) (VP (VB pick) (PRT (RP up)) (SBAR (WHADVP (WRB where)) (S (NP (PRP he)) (VP (VBD had) (VP (VBN left) (PRT (RP off)) (PP (IN in) (NP (NNP Sudan)))))))))))) (. .)))
Bin Laden wanted to pick up where he left off in Sudan. 
( ( Bin Laden ) ( ( wanted ( to ( ( pick up ) ( where ( he ( ( left off ) ( in Sudan ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Bin) (NNP Laden)) (VP (VBD wanted) (S (VP (TO to) (VP (VB pick) (PRT (RP up)) (SBAR (WHADVP (WRB where)) (S (NP (PRP he)) (VP (VBD left) (PRT (RP off)) (PP (IN in) (NP (NNP Sudan)))))))))) (. .)))