( ( Image ( in ( spherical ( refracting surface ) ) ) ) . )
(ROOT (S (VP (VB Image) (PP (IN in) (NP (JJ spherical) (NN refracting) (NN surface)))) (. .)))
Image in spherical refracting surface.
(ROOT (S (NP (DT An) (NN image)) (VP (VBZ is) (NP (NP (DT a) (NN copy)) (PP (IN of) (NP (NP (DT an) (NN image)) (VP (VBN formed) (PP (IN by) (NP (NN reflection) (CC or) (NN refraction)))))))) (. .)))