Bin Ladin had an important part in this activity.
( ( Bin Ladin ) ( ( had ( ( an ( important part ) ) ( in ( this activity ) ) ) ) . ) )
(ROOT (S (NP (NNP Bin) (NNP Ladin)) (VP (VBD had) (NP (NP (DT an) (JJ important) (NN part)) (PP (IN in) (NP (DT this) (NN activity))))) (. .)))
Bin Ladin's role in the proceedings was significant.
( ( ( ( Bin ( Ladin 's ) ) role ) ( in ( the proceedings ) ) ) ( ( was significant ) . ) )
(ROOT (S (NP (NP (NP (NNP Bin) (NNP Ladin) (POS 's)) (NN role)) (PP (IN in) (NP (DT the) (NNS proceedings)))) (VP (VBD was) (ADJP (JJ significant))) (. .)))