( Lights ( ( can ( ( ( ( ( be ( attached ( to ( ( Celestial Objects ) ( like ( the ( ( sun and ) moon ) ) ) ) ) ) ) , ) ( cast shadows ) ) and ) ( affect ( the ( ( sky and ) atmosphere ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Lights)) (VP (MD can) (VP (VP (VB be) (VP (VBN attached) (PP (TO to) (NP (NP (NNP Celestial) (NNP Objects)) (PP (IN like) (NP (DT the) (NN sun) (CC and) (NN moon))))))) (, ,) (VP (VB cast) (NP (NNS shadows))) (CC and) (VP (VB affect) (NP (DT the) (NN sky) (CC and) (NN atmosphere))))) (. .)))
Lights can be attached to Celestial Objects like the sun and moon, cast shadows and affect the sky and atmosphere.
(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)))) (. .)))