( ( Affective disorders ) ( ( are ( ( physical ( , ( ( metabolic ( , ( and biochemical ) ) ) disturbances ) ) ) ( of ( the ( nervous system ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Affective) (NNS disorders)) (VP (VBP are) (NP (NP (JJ physical) (, ,) (ADJP (JJ metabolic) (, ,) (CC and) (JJ biochemical)) (NNS disturbances)) (PP (IN of) (NP (DT the) (JJ nervous) (NN system))))) (. .)))
Affective disorders are physical, metabolic, and biochemical disturbances of the nervous system.
(ROOT (S (NP (JJ Neurodevelopmental) (NNS disorders)) (VP (VBP happen) (SBAR (WHADVP (WRB when)) (S (NP (NP (NN development)) (PP (IN of) (NP (JJ nervous) (NN system)))) (VP (VBZ is) (ADJP (JJ disturbed)))))) (. .)))