( ( ( Solar eclipses ) ( on Earth ) ) ( ( ( are ( notable ( because ( ( ( ( the Moon ) and ) ( the Sun ) ) ( appear ( to ( be ( almost ( exactly ( the ( same size ) ) ) ) ) ) ) ) ) ) ) ( -LRB- ( ( ( 0.5 degrees ) wide ) -RRB- ) ) ) . ) )
(ROOT (S (NP (NP (NNP Solar) (NNS eclipses)) (PP (IN on) (NP (NNP Earth)))) (VP (VBP are) (ADJP (JJ notable) (SBAR (IN because) (S (NP (NP (DT the) (NN Moon)) (CC and) (NP (DT the) (NNP Sun))) (VP (VBP appear) (S (VP (TO to) (VP (VB be) (NP (RB almost) (RB exactly) (DT the) (JJ same) (NN size))))))))) (PRN (-LRB- -LRB-) (ADJP (NP (CD 0.5) (NNS degrees)) (JJ wide)) (-RRB- -RRB-))) (. .)))
Solar eclipses on Earth are notable because the Moon and the Sun appear to be almost exactly the same size (0.5 degrees wide).
(ROOT (S (NP (NP (DT The) (NN sun)) (CC and) (NP (DT the) (NN moon))) (VP (VBP appear) (S (VP (TO to) (VP (VB be) (PP (IN about) (NP (NP (DT the) (JJ same) (NN size)) (PP (IN in) (NP (DT the) (NN sky))))) (SBAR (IN because) (S (NP (DT the) (NN moon)) (VP (VP (VBZ is) (ADJP (JJR smaller)) (PP (IN in) (NP (NN diameter)))) (CC and) (VP (VBZ is) (ADJP (ADJP (JJR closer)) (PP (TO to) (NP (NN earth)))) (PP (IN than) (NP (DT the) (NN sun))))))))))) (. .)))