( ( Economic laws ) ( ( ( ( are ( statements ( with regard ) ) ) ( to ( ( the tendencies ) ( of ( ( man 's ) action ) ) ) ) ) ( under ( certain conditions ) ) ) . ) )
(ROOT (S (NP (NNP Economic) (NNS laws)) (VP (VBP are) (NP (NP (NNS statements)) (PP (IN with) (NP (NN regard)))) (PP (TO to) (NP (NP (DT the) (NNS tendencies)) (PP (IN of) (NP (NP (NN man) (POS 's)) (NN action))))) (PP (IN under) (NP (JJ certain) (NNS conditions)))) (. .)))
Economic laws are statements with regard to the tendencies of man's action under certain conditions.
(ROOT (S (NP (NP (DT A) (NN statement)) (SBAR (WHNP (WDT that)) (S (VP (VBZ describes) (SBAR (WHNP (WP what)) (S (ADVP (RB always)) (VP (VBZ happens) (PP (IN under) (NP (NP (JJ certain) (NNS conditions)) (PP (IN in) (NP (NN nature)))))))))))) (VP (VBZ is) (ADVP (RB also)) (VP (VBN known) (PP (IN as) (NP (JJ scientific) (NN law))))) (. .)))