( ( Looking ( at ( Barometric ( Pressure ( Air pressure ) ) ) ) ) ( ( can ( be ( measured ( in ( millibars ( -LRB- ( mbars -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (S (VP (VBG Looking) (PP (IN at) (NP (NNP Barometric) (NNP Pressure) (NNP Air) (NN pressure))))) (VP (MD can) (VP (VB be) (VP (VBN measured) (PP (IN in) (NP (NP (NNS millibars)) (PRN (-LRB- -LRB-) (NP (NNS mbars)) (-RRB- -RRB-))))))) (. .)))
Looking at Barometric Pressure Air pressure can be measured in millibars (mbars).
(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)))))))) (. .)))