( ( Like ( ( hot breath ) ( on ( a ( cold mirror ) ) ) ) ) ( , ( ( if ( ( ( the ( surface temperature ) ) ( of ( the flue ) ) ) ( is cool ) ) ) ( , ( it ( ( will ( ( cause ( the ( vaporized ( carbon particles ) ) ) ) ( in ( the ( flue ( ( gas ( -LRB- ( smoke -RRB- ) ) ) ( to solidify ) ) ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (PP (IN Like) (NP (NP (JJ hot) (NN breath)) (PP (IN on) (NP (DT a) (JJ cold) (NN mirror))))) (, ,) (SBAR (IN if) (S (NP (NP (DT the) (NN surface) (NN temperature)) (PP (IN of) (NP (DT the) (NN flue)))) (VP (VBZ is) (ADJP (JJ cool))))) (, ,) (NP (PRP it)) (VP (MD will) (VP (VB cause) (NP (DT the) (JJ vaporized) (NN carbon) (NNS particles)) (PP (IN in) (NP (DT the) (JJ flue) (NN gas) (PRN (-LRB- -LRB-) (NP (NN smoke)) (-RRB- -RRB-)) (S (VP (TO to) (VP (VB solidify)))))))) (. .)))
Like hot breath on a cold mirror, if the surface temperature of the flue is cool, it will cause the vaporized carbon particles in the flue gas (smoke) to solidify.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (DT the) (NN water)) (VP (VBP vapor) (PP (IN from) (NP (DT a) (JJ hot) (NN shower) (NNS contacts))) (NP (NP (DT the) (JJR cooler) (NN surface)) (PP (IN of) (NP (DT a) (NN mirror))))))) (, ,) (NP (DT the) (NN result)) (VP (VBZ is) (SBAR (IN that) (S (NP (NNP foggy)) (VP (VBP mirror))))) (. .)))