( ( Attempt ( to ( explain ( ( the relationship ) ( between ( ( temperature ( , ( moisture ( , ( and origin ) ) ) ) ) ( of ( air masses ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Attempt) (S (VP (TO to) (VP (VB explain) (NP (NP (DT the) (NN relationship)) (PP (IN between) (NP (NP (NN temperature) (, ,) (NN moisture) (, ,) (CC and) (NN origin)) (PP (IN of) (NP (NN air) (NNS masses)))))))))) (. .)))
Attempt to explain the relationship between temperature, moisture, and origin of air masses.
(ROOT (S (NP (NP (CD One)) (PP (IN of) (NP (NP (DT the) (NNS properties)) (PP (IN of) (NP (DT an) (NN air) (NN mass)))))) (VP (VBZ is) (SBAR (IN that) (S (NP (DT an) (NN air) (NN mass)) (VP (VBZ has) (NP (NP (JJ similar) (NN temperature) (CC and) (NN moisture) (NNS properties)) (PP (IN throughout) (NP (PRP it)))))))) (. .)))
One of the properties of an air mass is that an air mass has similar temperature and moisture properties throughout it.