( ( ( ( ( ( At first ) ( they ( ( ( ( grow quickly ) ( , ( ( ( ( putting down ) roots ) ( into ( the ( rich ( , ( moist soil ) ) ) ) ) ) , ) ) ) and ) ( ( shoots up ) ( into ( the ( warming sunlight ) ) ) ) ) ) ) , ) but ) ( ( after ( a ( few days ) ) ) ( it ( ( is ( noticeable ( that ( ( ( ( only one ) or ) two ) ( will ( make it ) ) ) ) ) ) ( -LRB- ( ( ( if ( I ( ( do n't ) ( ( ( pull them ) out ) first ) ) ) ) ! ) -RRB- ) ) ) ) ) ) . )
(ROOT (S (S (PP (IN At) (NP (JJ first))) (NP (PRP they)) (VP (VP (VBP grow) (ADVP (RB quickly))) (PRN (, ,) (S (VP (VBG putting) (PRT (RP down)) (NP (NNS roots)) (PP (IN into) (NP (DT the) (JJ rich) (, ,) (JJ moist) (NN soil))))) (, ,)) (CC and) (VP (VBZ shoots) (PRT (RP up)) (PP (IN into) (NP (DT the) (NN warming) (NN sunlight)))))) (, ,) (CC but) (S (PP (IN after) (NP (DT a) (JJ few) (NNS days))) (NP (PRP it)) (VP (VBZ is) (ADJP (JJ noticeable) (SBAR (IN that) (S (NP (NP (RB only) (CD one)) (CC or) (NP (CD two))) (VP (MD will) (VP (VB make) (NP (PRP it))))))) (PRN (-LRB- -LRB-) (FRAG (SBAR (IN if) (S (NP (PRP I)) (VP (VBP do) (RB n't) (VP (VB pull) (NP (PRP them)) (PRT (RP out)) (ADVP (RB first)))))) (. !)) (-RRB- -RRB-)))) (. .)))
At first they grow quickly, putting down roots into the rich, moist soil, and shoots up into the warming sunlight, but after a few days it is noticeable that only one or two will make it (if I don't pull them out first!).
(ROOT (S (NP (NNP Gravitropism)) (VP (VBZ ensures) (SBAR (SBAR (IN that) (S (NP (NNS roots)) (VP (VBP grow) (PP (IN into) (NP (DT the) (NN soil)))))) (CC and) (SBAR (IN that) (S (NP (NNS shoots)) (VP (VBP grow) (PP (IN toward) (NP (NN sunlight)))))))) (. .)))