( ( ( The acorns ) ( of ( English oaks ) ) ) ( ( grow ( on ( long stalks ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS acorns)) (PP (IN of) (NP (JJ English) (NNS oaks)))) (VP (VBP grow) (PP (IN on) (NP (JJ long) (NNS stalks)))) (. .)))
The acorns of English oaks grow on long stalks.
(ROOT (S (NP (NP (DT An) (NN acorn)) (VP (VBG growing) (PP (IN into) (NP (DT an) (JJ adult) (NN tree))))) (VP (MD will) (VP (VB take) (NP (DT the) (JJS longest) (NN time)) (S (VP (TO to) (VP (VB observe)))))) (. .)))