( ( ( ( Gaseous Ni ) ( -LRB- ( C5H5 -RRB- ) ) ) ( ( 2 decomposes ) ( to ( a Ni ) ) ) ) ( ( ( ( ( mirror ( upon contact ) ) ( with ( a ( hot surface ) ) ) ) , ) ( ( releasing ( the ( hydrocarbon ligands ) ) ) ( as ( gaseous coproducts ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NNP Gaseous) (NNP Ni)) (PRN (-LRB- -LRB-) (NP (NNP C5H5)) (-RRB- -RRB-))) (ADVP (NP (CD 2) (NNS decomposes)) (PP (TO to) (NP (DT a) (NNP Ni))))) (VP (VBP mirror) (PP (IN upon) (NP (NN contact))) (PP (IN with) (NP (DT a) (JJ hot) (NN surface))) (, ,) (S (VP (VBG releasing) (NP (DT the) (NN hydrocarbon) (NNS ligands)) (PP (IN as) (NP (JJ gaseous) (NNS coproducts)))))) (. .)))
Gaseous Ni(C5H5)2 decomposes to a Ni mirror upon contact with a hot surface, releasing the hydrocarbon ligands as gaseous coproducts.
(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))))) (. .)))