Yet the income gap in free time is not large; financially well-o individuals average only 2 to 4 hours a week less free time than do their less economically advantaged counterparts.
( ( ( ( Yet ( ( ( the ( income gap ) ) ( in ( free time ) ) ) ( ( is not ) large ) ) ) ; ) ( ( ( financially well-o ) individuals ) ( average ( ( ( ( only ( ( 2 to ) 4 ) ) hours ) ( a ( week less ) ) ) ( ( free ( time than ) ) ( do ( their ( ( less ( economically advantaged ) ) counterparts ) ) ) ) ) ) ) ) . )
(ROOT (S (S (CC Yet) (NP (NP (DT the) (NN income) (NN gap)) (PP (IN in) (NP (JJ free) (NN time)))) (VP (VBZ is) (RB not) (ADJP (JJ large)))) (: ;) (S (NP (ADJP (RB financially) (JJ well-o)) (NNS individuals)) (VP (VBP average) (SBAR (S (NP (NP (QP (RB only) (CD 2) (TO to) (CD 4)) (NNS hours)) (NP (DT a) (NN week) (RBR less))) (VP (ADVP (JJ free) (NN time) (IN than)) (VBP do) (NP (PRP$ their) (ADJP (JJR less) (RB economically) (JJ advantaged)) (NNS counterparts))))))) (. .)))
Rich individuals do not necessarily work longer but are simply paid more for their unique skills that make them successful. 
( ( Rich individuals ) ( ( ( ( ( ( do not ) necessarily ) ( work longer ) ) but ) ( ( are simply ) ( paid ( more ( for ( ( their ( unique skills ) ) ( that ( make ( them successful ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Rich) (NNS individuals)) (VP (VP (VBP do) (RB not) (ADVP (RB necessarily)) (VP (VB work) (ADVP (RBR longer)))) (CC but) (VP (VBP are) (ADVP (RB simply)) (VP (VBN paid) (PP (JJR more) (IN for) (NP (NP (PRP$ their) (JJ unique) (NNS skills)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (S (NP (PRP them)) (ADJP (JJ successful))))))))))) (. .)))