A sufficiently clever system of taxes and subsidies can induce people to make accurate reports of their own emotional distress.
( ( ( A ( ( sufficiently clever ) system ) ) ( of ( ( taxes and ) subsidies ) ) ) ( ( can ( induce ( people ( to ( make ( ( accurate reports ) ( of ( their ( own ( emotional distress ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (ADJP (RB sufficiently) (JJ clever)) (NN system)) (PP (IN of) (NP (NNS taxes) (CC and) (NNS subsidies)))) (VP (MD can) (VP (VB induce) (S (NP (NNS people)) (VP (TO to) (VP (VB make) (NP (NP (ADJP (JJ accurate)) (NNS reports)) (PP (IN of) (NP (PRP$ their) (JJ own) (JJ emotional) (NN distress))))))))) (. .)))
People never report on their emotional distress.
( People ( never ( ( report ( on ( their ( emotional distress ) ) ) ) . ) ) )
(ROOT (S (NP (NNS People)) (ADVP (RB never)) (VP (VBP report) (PP (IN on) (NP (PRP$ their) (JJ emotional) (NN distress)))) (. .)))