 naches the `glow of pleasure-plus-pride that only a child can give to its parents':  This is my son, the Doctor! 
( ( ( ( naches ( the ( ` ( ( glow of ) ( ( pleasure-plus-pride ( that ( ( only ( a child ) ) ( can ( give ( to ( its parents ) ) ) ) ) ) ) ' ) ) ) ) ) : ) ( This ( is ( ( ( my son ) , ) ( the Doctor ) ) ) ) ) ! )
(ROOT (S (S (VP (VBZ naches) (NP (DT the) (`` `) (ADJP (NN glow) (PP (IN of))) (NN pleasure-plus-pride) (SBAR (IN that) (S (NP (RB only) (DT a) (NN child)) (VP (MD can) (VP (VB give) (PP (TO to) (NP (PRP$ its) (NNS parents))))))) ('' ')))) (: :) (S (NP (DT This)) (VP (VBZ is) (NP (NP (PRP$ my) (NN son)) (, ,) (NP (DT the) (NN Doctor))))) (. !)))
The man's son was the  doctor in the hospital.
( ( ( The ( man 's ) ) son ) ( ( was ( ( the doctor ) ( in ( the hospital ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN man) (POS 's)) (NN son)) (VP (VBD was) (NP (NP (DT the) (NN doctor)) (PP (IN in) (NP (DT the) (NN hospital))))) (. .)))