( ( 6-8 weeks ) ( ( are ( ( needed ( for organizations ) ) ( to ( file ( all ( necessary paperwork ) ) ) ) ) ) . ) )
(ROOT (S (NP (CD 6-8) (NNS weeks)) (VP (VBP are) (VP (VBN needed) (PP (IN for) (NP (NNS organizations))) (S (VP (TO to) (VP (VB file) (NP (DT all) (JJ necessary) (NN paperwork))))))) (. .)))
6-8 weeks are needed for organizations to file all necessary paperwork.
(ROOT (S (PP (IN By) (NP (CD 8) (NNS weeks))) (, ,) (NP (DT all) (JJ major) (NNS organs)) (VP (VBP start) (S (VP (VBG developing)))) (. .)))