( ( Without gravity ) ( flames ( ( ( ( ( ( ( ( do not ) ( retain ( their ( earthly shape ) ) ) ) , ) but ) ( are spherical ) ) , ) ( like ( the sun ) ) ) . ) ) )
(ROOT (S (PP (IN Without) (NP (NN gravity))) (NP (NNS flames)) (VP (VP (VBP do) (RB not) (VP (VB retain) (NP (PRP$ their) (JJ earthly) (NN shape)))) (, ,) (CC but) (VP (VBP are) (ADJP (JJ spherical))) (, ,) (PP (IN like) (NP (DT the) (NN sun)))) (. .)))
Without gravity flames do not retain their earthly shape, but are spherical, like the sun.
(ROOT (S (NP (NNP High) (NNP gravity)) (VP (VBZ explains) (NP (NP (DT the) (JJ spherical) (NN shape)) (PP (IN of) (NP (NNS ceres)))) (, ,) (SBAR (IN once) (S (VP (VBD thought) (S (VP (TO to) (VP (VB be) (NP (DT the) (JJS largest) (NN asteroid))))))))) (. .)))