( ( ( Stress and ) strength ) ( ( ( can also ) ( be ( measured ( in ( ( ( ( megapascals ( -LRB- ( MPa -RRB- ) ) ) or ) gigapascals ) ( -LRB- ( GPa -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Stress) (CC and) (NN strength)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN measured) (PP (IN in) (NP (NP (NNS megapascals)) (PRN (-LRB- -LRB-) (NP (NNP MPa)) (-RRB- -RRB-)) (CC or) (NP (NNS gigapascals)) (PRN (-LRB- -LRB-) (NP (NNP GPa)) (-RRB- -RRB-))))))) (. .)))
Stress and strength can also be measured in megapascals (MPa) or gigapascals (GPa).
(ROOT (S (NP (NNS Megapascals)) (VP (VBZ is) (NP (NP (DT the) (NN measure)) (PP (IN of) (NP (NN water) (NN potential))))) (. .)))