( Scientists ( ( use ( the ( Kelvin ( temperature scale ) ) ) ) . ) )
(ROOT (S (NP (NNS Scientists)) (VP (VBP use) (NP (DT the) (NNP Kelvin) (NN temperature) (NN scale))) (. .)))
Scientists use the Kelvin temperature scale.
(ROOT (S (NP (DT The) (JJ kelvin) (NN scale) (NN temperature) (NN scale)) (VP (VBZ is) (ADVP (RB commonly)) (VP (VBN used) (PP (IN in) (NP (NN science))))) (. .)))