( ( The sun ) ( ( is ( ( the ( first ( ( -LRB- ( ( ( as most ) prominent ) -RRB- ) ) ( celestial object ) ) ) ) considered ) ) . ) )
(ROOT (S (NP (DT The) (NN sun)) (VP (VBZ is) (NP (NP (DT the) (JJ first) (PRN (-LRB- -LRB-) (NP (QP (IN as) (JJS most) (CD prominent))) (-RRB- -RRB-)) (JJ celestial) (NN object)) (VP (VBN considered)))) (. .)))
The sun is the first (as most prominent) celestial object considered.
(ROOT (S (S (VP (VBG Looking) (ADVP (RB directly)) (PP (IN at) (NP (DT the) (NN sun))))) (VP (MD can) (VP (VB cause) (NP (NN blindness)))) (. .)))