( ( Vascular tissue ) ( ( ( ( enables plants ) ( to ( grow ( upright ( -LRB- ( ( some ( to ( ( very great ) heights ) ) ) -RRB- ) ) ) ) ) ) ( , ( while ( ( maintaining ( moisture levels ) ) ( in ( ( all parts ) ( of ( the plant ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Vascular) (NN tissue)) (VP (VBZ enables) (NP (NNS plants)) (S (VP (TO to) (VP (VB grow) (NP (NP (NN upright)) (PRN (-LRB- -LRB-) (NP (NP (DT some)) (PP (TO to) (NP (ADJP (RB very) (JJ great)) (NNS heights)))) (-RRB- -RRB-)))))) (PRN (, ,) (IN while) (S (VP (VBG maintaining) (NP (NN moisture) (NNS levels)) (PP (IN in) (NP (NP (DT all) (NNS parts)) (PP (IN of) (NP (DT the) (NN plant))))))))) (. .)))
Vascular tissue enables plants to grow upright (some to very great heights), while maintaining moisture levels in all parts of the plant.
(ROOT (S (NP (JJ Vascular) (NN tissue)) (VP (VBD allowed) (NP (DT these) (NNS plants)) (S (VP (TO to) (VP (VB grow) (NP (JJR taller)))))) (. .)))