( I ( ( live ( in ( ( a ( ( very small ) community ) ) ( -LRB- ( ( ( ( population ( about 500 ) ) -- ) ( ( no one ) ( knows ( the ( exact number ) ) ) ) ) -RRB- ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP live) (PP (IN in) (NP (NP (DT a) (ADJP (RB very) (JJ small)) (NN community)) (PRN (-LRB- -LRB-) (NP (NP (NN population)) (PP (IN about) (NP (CD 500)))) (: --) (S (NP (DT no) (NN one)) (VP (VBZ knows) (NP (DT the) (JJ exact) (NN number)))) (-RRB- -RRB-))))) (. .)))
I live in a very small community (population about 500--no one knows the exact number).
(ROOT (S (NP (NP (NNS Populations)) (VP (VBG living) (PP (IN in) (NP (CD one) (NN place))))) (VP (VBP form) (NP (DT a) (NN community))) (. .)))