( ( STRATOSPHERE ( ( The ( ( relatively isothermal ) layer ) ) ( of ( ( the atmosphere ) ( located ( ( ( above ( the troposphere ) ) and ) ( below ( the mesosphere ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB STRATOSPHERE) (NP (NP (DT The) (ADJP (RB relatively) (JJ isothermal)) (NN layer)) (PP (IN of) (NP (NP (DT the) (NN atmosphere)) (VP (VBN located) (PP (PP (IN above) (NP (DT the) (NNP troposphere))) (CC and) (PP (IN below) (NP (DT the) (NN mesosphere))))))))) (. .)))
STRATOSPHERE The relatively isothermal layer of the atmosphere located above the troposphere and below the mesosphere.
(ROOT (S (NP (DT The) (NN stratosphere)) (VP (VBZ is) (NP (NP (DT the) (NN layer)) (PP (IN above) (NP (DT the) (NNP troposphere))))) (. .)))