( ( Close stars ) ( ( appear ( to ( ( ( ( move ( very ( slightly ( in ( the sky ) ) ) ) ) ( throughout ( the year ) ) ) , ) ( because ( ( the Earth ) ( is ( going ( around ( the Sun ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Close) (NNS stars)) (VP (VBP appear) (S (VP (TO to) (VP (VB move) (ADJP (RB very) (RB slightly) (PP (IN in) (NP (DT the) (NN sky)))) (PP (IN throughout) (NP (DT the) (NN year))) (, ,) (SBAR (IN because) (S (NP (DT the) (NN Earth)) (VP (VBZ is) (VP (VBG going) (PP (IN around) (NP (DT the) (NNP Sun))))))))))) (. .)))
Close stars appear to move very slightly in the sky throughout the year, because the Earth is going around the Sun.
(ROOT (S (PP (IN From) (NP (NN earth))) (, ,) (NP (DT the) (NN sun)) (VP (VBZ appears) (NP (NN brighter)) (PP (IN than) (NP (DT any) (JJ other) (NN star))) (SBAR (IN because) (S (NP (DT the) (NN sun)) (VP (VBZ is) (NP (DT the) (JJS closest) (NN star))))))))