To provide a useful perspective on how alternative levels of national saving affect future living standards, we also compared our simulation results to a historical benchmark.
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(ROOT (S (S (VP (TO To) (VP (VB provide) (NP (DT a) (JJ useful) (NN perspective)) (PP (IN on) (SBAR (WHADVP (WRB how)) (S (NP (NP (JJ alternative) (NNS levels)) (PP (IN of) (NP (JJ national) (NN saving)))) (VP (VBP affect) (NP (JJ future) (NN living) (NNS standards))))))))) (, ,) (NP (PRP we)) (ADVP (RB also)) (VP (VBD compared) (NP (PRP$ our) (NN simulation) (NNS results)) (PP (TO to) (NP (DT a) (JJ historical) (NN benchmark)))) (. .)))
Simulations are useful when used in comparison to a historical benchmark.
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(ROOT (S (NP (NNS Simulations)) (VP (VBP are) (ADJP (JJ useful) (SBAR (WHADVP (WRB when)) (S (VP (VBN used) (PP (IN in) (NP (NN comparison))) (PP (TO to) (NP (DT a) (JJ historical) (NN benchmark)))))))) (. .)))