( ( A planet ) ( ( is ( any ( of ( ( ( the ( nine ( major ( celestial bodies ) ) ) ) ( -LRB- ( ( ( Mercury , ) ( Venus ( , ( Earth ( , ( Mars ( , ( Jupiter ( , ( Saturn ( , ( Uranus ( , ( Neptune ( , Pluto ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) -RRB- ) ) ) ( that ( ( ( orbit ( the sun ) ) and ) ( shine ( by ( reflecting ( its light ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN planet)) (VP (VBZ is) (NP (NP (DT any)) (PP (IN of) (NP (NP (DT the) (CD nine) (JJ major) (JJ celestial) (NNS bodies)) (PRN (-LRB- -LRB-) (NP (NP (NNP Mercury)) (, ,) (NP (NNP Venus) (, ,) (NNP Earth) (, ,) (NNP Mars) (, ,) (NNP Jupiter) (, ,) (NNP Saturn) (, ,) (NNP Uranus) (, ,) (NNP Neptune) (, ,) (NNP Pluto))) (-RRB- -RRB-)) (SBAR (WHNP (WDT that)) (S (VP (VP (VB orbit) (NP (DT the) (NN sun))) (CC and) (VP (VB shine) (PP (IN by) (S (VP (VBG reflecting) (NP (PRP$ its) (NN light))))))))))))) (. .)))
A planet is any of the nine major celestial bodies (Mercury, Venus, Earth , Mars, Jupiter, Saturn, Uranus, Neptune, Pluto) that orbit the sun and shine by reflecting its light.
(ROOT (S (NP (DT The) (NNS planets)) (VP (VB orbit) (PRT (RP around)) (NP (DT the) (NN sun))) (. .)))