( ( ( ( This program ) ( details ( the ( three ( primary types ) ) ) ) ) ( of pollution ) ) ; )
(ROOT (NP (NP (DT This) (NN program)) (NP (NP (NNS details)) (NP (DT the) (CD three) (JJ primary) (NNS types))) (PP (IN of) (NP (NN pollution))) (: ;)))
This program details the three primary types of pollution;
(ROOT (S (NP (JJ Primary) (NNS pollutants)) (VP (VBP enter) (NP (DT the) (NN air)) (ADVP (RB directly))) (. .)))