( Pressure ( ( is ( defined ( as ( ( the ratio ) ( of ( ( the force ) ( exerted ( to ( ( the area ) ( ( the force ) ( acts on ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Pressure)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN ratio)) (PP (IN of) (NP (NP (DT the) (NN force)) (VP (VBN exerted) (PP (TO to) (NP (NP (DT the) (NN area)) (SBAR (S (NP (DT the) (NN force)) (VP (VBZ acts) (PRT (RP on)))))))))))))) (. .)))
Pressure is defined as the ratio of the force exerted to the area the force acts on.
(ROOT (S (NP (NN Pressure)) (VP (VBZ is) (VP (VBN defined) (PP (IN in) (NP (NN physics))) (PP (IN as) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NP (NN force)) (VP (VBG pushing) (PP (IN against) (NP (DT a) (VBN given) (NN area)))))))))) (. .)))