( ( For example ) ( , ( researchers ( ( were ( able ( to ( separate ( ( ( ( ( the ( ( genetically determined ) traits ) ) ( of ( ( ( body size ) , ) ( nest size ) ) ) ) , ) and ) ( ( foraging behavior ) ( in ( laboratory mice ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (, ,) (NP (NNS researchers)) (VP (VBD were) (ADJP (JJ able) (S (VP (TO to) (VP (VB separate) (NP (NP (DT the) (ADJP (RB genetically) (VBN determined)) (NNS traits)) (PP (IN of) (NP (NP (NN body) (NN size)) (, ,) (NP (NN nest) (NN size)))) (, ,) (CC and) (NP (NP (VBG foraging) (NN behavior)) (PP (IN in) (NP (NN laboratory) (NNS mice)))))))))) (. .)))
For example, researchers were able to separate the genetically determined traits of body size, nest size, and foraging behavior in laboratory mice.
(ROOT (S (S (VP (VBG Being) (ADJP (JJ able) (S (VP (TO to) (VP (VB read))))))) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (DT a) (JJ learned) (NN trait))))) (. .)))