( ( 15 ( -RRB- Venus ) ) ( ( is ( ( the ( only planet ) ) ( that ( rotates clockwise ) ) ) ) . ) )
(ROOT (S (NP (CD 15) (JJ -RRB-) (NNS Venus)) (VP (VBZ is) (NP (NP (DT the) (JJ only) (NN planet)) (SBAR (WHNP (WDT that)) (S (VP (VBZ rotates) (ADJP (JJ clockwise))))))) (. .)))
15) Venus is the only planet that rotates clockwise.
(ROOT (S (NP (NNP Venus)) (VP (VBZ is) (NP (NP (DT the) (JJ only) (NN planet)) (SBAR (WHNP (WDT that)) (S (VP (VBZ rotates) (ADJP (JJ clockwise)) (SBAR (IN as) (S (VP (VBN viewed) (PP (IN from) (NP (PRP$ its) (NN north) (NN pole))))))))))) (. .)))