( ( Since ( ( the Sun ) ( is ( ( the ( hottest body ) ) ( of ( our ( solar system ) ) ) ) ) ) ) ( , ( it ( ( emits ( the ( shortest wavelengths ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Since) (S (NP (DT the) (NNP Sun)) (VP (VBZ is) (NP (NP (DT the) (JJS hottest) (NN body)) (PP (IN of) (NP (PRP$ our) (JJ solar) (NN system))))))) (, ,) (NP (PRP it)) (VP (VBZ emits) (NP (DT the) (JJS shortest) (NNS wavelengths))) (. .)))
Since the Sun is the hottest body of our solar system, it emits the shortest wavelengths.
(ROOT (S (NP (DT The) (NN sun)) (VP (VBZ is) (NP (NP (DT the) (JJS largest) (NN body)) (PP (IN in) (NP (DT the) (JJ solar) (NN system))))) (. .)))