( We ( ( feel ( this ( will ( result ( in ( ( trefoil distortion ) ( of ( the ( mirror surface ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP feel) (SBAR (S (NP (DT this)) (VP (MD will) (VP (VB result) (PP (IN in) (NP (NP (JJ trefoil) (NN distortion)) (PP (IN of) (NP (DT the) (NN mirror) (NN surface)))))))))) (. .)))
We feel this will result in trefoil distortion of the mirror  surface.
(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))))) (. .)))