( ( ( Millibar ( -LRB- ( MB -RRB- ) ) ) ( ( The ( standard unit ) ) ( of ( measurement ( for ( ( atmospheric pressure ) ( used ( by ( the ( National ( Weather Service ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NP (NNP Millibar)) (PRN (-LRB- -LRB-) (NP (NNP MB)) (-RRB- -RRB-))) (NP (NP (DT The) (JJ standard) (NN unit)) (PP (IN of) (NP (NP (NN measurement)) (PP (IN for) (NP (NP (JJ atmospheric) (NN pressure)) (VP (VBN used) (PP (IN by) (NP (DT the) (NNP National) (NNP Weather) (NNP Service))))))))) (. .)))
Millibar (MB) The standard unit of measurement for atmospheric pressure used by the National Weather Service.
(ROOT (S (NP (NNP Millibar)) (VP (VBZ is) (NP (NP (DT the) (NN unit)) (VP (VBN used) (S (VP (TO to) (VP (VB measure) (NP (NN air) (NN pressure)))))))) (. .)))