( ( primary ( air pollutants ) ) ( ( In ( this website ) ) ( ( ( the ministry ) ( of ( the environment ) ) ) ( ( details ( the ( primary ( air pollutants ) ) ) ) . ) ) ) )
(ROOT (S (NP (JJ primary) (NN air) (NNS pollutants)) (PP (IN In) (NP (DT this) (NN website))) (NP (NP (DT the) (NN ministry)) (PP (IN of) (NP (DT the) (NN environment)))) (VP (VBZ details) (NP (DT the) (JJ primary) (NN air) (NNS pollutants))) (. .)))
primary air pollutants In this website the ministry of the environment details the primary air pollutants.
(ROOT (S (NP (JJ Primary) (NNS pollutants)) (VP (VBP enter) (NP (DT the) (NN air)) (ADVP (RB directly))) (. .)))