( Historically ( , ( rRNA ( ( was ( ( used ( by ( Carl Woese ) ) ) ( to ( ( ( relate ( all organisms ) ) and ) ( reconstruct ( ( the tree ) ( of ( life ( -LRB- ( Woese77 -RRB- ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Historically)) (, ,) (NP (NN rRNA)) (VP (VBD was) (VP (VBN used) (PP (IN by) (NP (NNP Carl) (NNP Woese))) (S (VP (TO to) (VP (VP (VB relate) (NP (DT all) (NNS organisms))) (CC and) (VP (VB reconstruct) (NP (NP (DT the) (NN tree)) (PP (IN of) (NP (NP (NN life)) (PRN (-LRB- -LRB-) (NP (NNP Woese77)) (-RRB- -RRB-))))))))))) (. .)))
Historically, rRNA was used by Carl Woese to relate all organisms and reconstruct the tree of life (Woese77).
(ROOT (S (NP (NNP Carl) (NNP woese)) (VP (VBN constructed) (NP (DT a) (NN tree) (NN diagram)) (, ,) (S (VP (VBG separating) (NP (VBG living) (NNS organisms)) (PP (IN into) (NP (CD three) (NNS domains)))))) (. .)))