( ( Types ( of ( ( Air ( Masses ( Source ( Region ( Usual Characteristics ) ) ) ) ) ( of ( ( ( Source ( Accompanying ( Weather ( Maritime Equatorial ) ) ) ) ( -LRB- ( mE -RRB- ) ) ) ( ( ( ( ( ( Equatorial oceans ) ( Ascending air ) ) , ) ( ( very moisture ) ( High temperature ) ) ) and ) ( ( humidity , ) ( heavy rainfall ) ) ) ) ) ) ) ) ; )
(ROOT (NP (NP (NP (NNS Types)) (PP (IN of) (NP (NP (NNP Air) (NNP Masses) (NN Source) (NNP Region) (NNP Usual) (NNP Characteristics)) (PP (IN of) (NP (NP (NNP Source) (NNP Accompanying) (NNP Weather) (NNP Maritime) (NNP Equatorial)) (PRN (-LRB- -LRB-) (VP (VBN mE)) (-RRB- -RRB-)) (NP (NP (NP (JJ Equatorial) (NNS oceans)) (VP (VBG Ascending) (NP (NN air)))) (, ,) (NP (ADJP (RB very) (VBN moisture)) (JJ High) (NN temperature)) (CC and) (NP (NP (NN humidity)) (, ,) (NP (JJ heavy) (NNS rainfall))))))))) (: ;)))
Types of Air Masses Source Region Usual Characteristics of Source Accompanying Weather Maritime Equatorial ( mE ) Equatorial oceans Ascending air, very moisture High temperature and humidity, heavy rainfall;
(ROOT (S (SBAR (IN If) (S (NP (DT an) (NN air) (NN mass)) (VP (VBZ forms) (PP (IN over) (NP (DT an) (NN ocean)))))) (NP (PRP it)) (VP (VBZ is) (VP (VBN called) (NP (DT a) (JJ maritime) (NN air) (NN mass)))) (. .)))