( ( A ( plane mirror ) ) ( ( makes ( ( an image ) ( called ( a ( virtual image ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN plane) (NN mirror)) (VP (VBZ makes) (SBAR (S (NP (DT an) (NN image)) (VP (VBD called) (NP (DT a) (JJ virtual) (NN image)))))) (. .)))
A plane mirror makes an image called a virtual image .
(ROOT (S (NP (DT A) (NN plane) (NN mirror)) (VP (VP (VBZ has) (NP (DT a) (ADJP (JJ flat) (JJ reflective)) (NN surface))) (CC and) (VP (VBZ forms) (NP (RB only) (JJ virtual) (NNS images)))) (. .)))