( ( ( One way ) ( to ( decrease ( the temperature ) ) ) ) ( ( is ( to ( ( decrease ( the ( air pressure ) ) ) ( around ( ( the ( liquid nitrogen ) ) ( cooling ( the superconductor ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD One) (NN way)) (SBAR (S (VP (TO to) (VP (VB decrease) (NP (DT the) (NN temperature))))))) (VP (VBZ is) (S (VP (TO to) (VP (VB decrease) (NP (DT the) (NN air) (NN pressure)) (PP (IN around) (NP (NP (DT the) (JJ liquid) (NN nitrogen)) (VP (VBG cooling) (NP (DT the) (NN superconductor))))))))) (. .)))
One way to decrease the temperature is to decrease the air pressure around the liquid nitrogen cooling the superconductor.
(ROOT (S (NP (NP (CD One) (NN way)) (SBAR (S (VP (TO to) (VP (VB change) (NP (NN water)) (PP (IN from) (NP (NP (DT a) (NN liquid)) (PP (TO to) (NP (DT a) (JJ solid)))))))))) (VP (VBZ is) (S (VP (TO to) (VP (VB decrease) (NP (DT the) (NN temperature)))))) (. .)))