( Temperature ( ( is ( ( a measure ) ( of ( ( the ( average ( kinetic energy ) ) ) ( of ( ( the particles ) ( in ( a body ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Temperature)) (VP (VBZ is) (NP (NP (DT a) (NN measure)) (PP (IN of) (NP (NP (DT the) (JJ average) (JJ kinetic) (NN energy)) (PP (IN of) (NP (NP (DT the) (NNS particles)) (PP (IN in) (NP (DT a) (NN body))))))))) (. .)))
Temperature is a measure of the average kinetic energy of the particles in a body.
(ROOT (S (PP (IN In) (NP (NN physics))) (, ,) (NP (NN temperature)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (JJ average) (JJ kinetic) (NN energy)) (PP (IN of) (NP (NP (DT the) (NNS particles)) (PP (IN in) (NP (DT an) (NN object))))))))) (. ?)))