( ( ( ( POPULATION Group ) ( of ( individuals ( of ( the ( same species ) ) ) ) ) ) ( ( living together ) ( in ( a ( defined area ) ) ) ) ) . )
(ROOT (NP (NP (NP (NNP POPULATION) (NNP Group)) (PP (IN of) (NP (NP (NNS individuals)) (PP (IN of) (NP (DT the) (JJ same) (NN species)))))) (VP (VBG living) (ADVP (RB together)) (PP (IN in) (NP (DT a) (JJ defined) (NN area)))) (. .)))
POPULATION Group of individuals of the same species living together in a defined area.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT a) (NN group)) (PP (IN of) (NP (NP (NNS organisms)) (PP (IN of) (NP (DT the) (JJ same) (NN species)))))) (SBAR (IN that) (S (VP (VBP live) (PP (IN in) (NP (DT the) (JJ same) (NN area)))) (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN population))))) (. .)))