( ( ( The ( ( most ( commonly used ) ) ( temperature scales ) ) ) ( in science ) ) ( ( are ( the ( Celsius ( and ( Kelvin scales ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (ADJP (RBS most) (RB commonly) (VBN used)) (NN temperature) (NNS scales)) (PP (IN in) (NP (NN science)))) (VP (VBP are) (NP (DT the) (NNP Celsius) (CC and) (NNP Kelvin) (NNS scales))) (. .)))
The most commonly used temperature scales in science are the Celsius and Kelvin scales.
(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))))) (. .)))