( ( in ecology ) ( , ( ( a population ) ( ( is ( ( a group ) ( of ( organisms ( of ( ( the ( same species ) ) ( ( ( living ( in ( a ( specified area ) ) ) ) and ) interbreeding ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN in) (NP (NN ecology))) (, ,) (NP (DT a) (NN population)) (VP (VBZ is) (NP (NP (DT a) (NN group)) (PP (IN of) (NP (NP (NNS organisms)) (PP (IN of) (NP (NP (DT the) (JJ same) (NN species)) (VP (VP (VBG living) (PP (IN in) (NP (DT a) (VBN specified) (NN area)))) (CC and) (VP (VBG interbreeding))))))))) (. .)))
in ecology, a population is a group of organisms of the same species living in a specified area and interbreeding.
(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))))) (. .)))