( ( The legislation ) ( ( directed ( ( the ( EPA Administrator ) ) ( to ( establish ( ( national ( primary ( and ( secondary ( ambient ( air ( quality standards ) ) ) ) ) ) ) ( for ( the ( identified ( air pollutants ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN legislation)) (VP (VBD directed) (S (NP (DT the) (NNP EPA) (NNP Administrator)) (VP (TO to) (VP (VB establish) (NP (NP (JJ national) (NN primary) (CC and) (JJ secondary) (JJ ambient) (NN air) (NN quality) (NNS standards)) (PP (IN for) (NP (DT the) (VBN identified) (NN air) (NNS pollutants)))))))) (. .)))
The legislation directed the EPA Administrator to establish national primary and secondary ambient air quality standards for the identified air pollutants.
(ROOT (S (NP (JJ Primary) (NNS pollutants)) (VP (VBP enter) (NP (DT the) (NN air)) (ADVP (RB directly))) (. .)))