( ( Population ( ( A group ) ( of ( individuals ( of ( ( the ( same species ) ) ( occupying ( a ( given area ) ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Population) (NP (NP (DT A) (NN group)) (PP (IN of) (NP (NP (NNS individuals)) (PP (IN of) (NP (NP (DT the) (JJ same) (NN species)) (VP (VBG occupying) (NP (DT a) (VBN given) (NN area))))))))) (. .)))
Population A group of individuals of the same species occupying a given 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))))) (. .)))