( ( ( The thermosphere ) ( -LRB- ( ( upper atmosphere ) -RRB- ) ) ) ( ( is ( ( the layer ) ( of ( ( ( the ( Earth 's ) ) atmosphere ) ( ( ( ( directly ( above ( the mesosphere ) ) ) and ) directly ) ( below ( the exosphere ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN thermosphere)) (PRN (-LRB- -LRB-) (NP (JJ upper) (NN atmosphere)) (-RRB- -RRB-))) (VP (VBZ is) (NP (NP (DT the) (NN layer)) (PP (IN of) (NP (NP (NP (DT the) (NN Earth) (POS 's)) (NN atmosphere)) (PP (PP (ADVP (RB directly)) (IN above) (NP (DT the) (NN mesosphere))) (CC and) (ADVP (RB directly)) (PP (IN below) (NP (DT the) (NN exosphere)))))))) (. .)))
The thermosphere (upper atmosphere) is the layer of the Earth's atmosphere directly above the mesosphere and directly below the exosphere.
(ROOT (S (NP (NNP Thermosphere)) (VP (VBZ is) (NP (DT the) (JJ upper-most) (NN atmosphere))) (. .)))