( It ( ( takes ( a ( while ( to ( grow ( into ( this ( ( ( participating and ) observing ) ( at ( the ( same time ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ takes) (NP (DT a) (NN while) (S (VP (TO to) (VP (VB grow) (PP (IN into) (S (NP (DT this)) (VP (VBG participating) (CC and) (VBG observing) (PP (IN at) (NP (DT the) (JJ same) (NN time))))))))))) (. .)))
It takes a while to grow into this participating and observing at the same time.
(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)))))) (. .)))