( ( Neutron stars ) ( ( are ( ( ( the remnants ) ( of one ) ) ( of ( ( the ( ( most cataclysmic ) events ) ) ( in ( the ( universe-a ( supernova explosion ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Neutron) (NNS stars)) (VP (VBP are) (NP (NP (DT the) (NNS remnants)) (PP (IN of) (NP (CD one))) (PP (IN of) (NP (NP (DT the) (ADJP (RBS most) (JJ cataclysmic)) (NNS events)) (PP (IN in) (NP (DT the) (JJ universe-a) (NN supernova) (NN explosion))))))) (. .)))
Neutron stars are the remnants of one of the most cataclysmic events in the universe-a supernova explosion.
(ROOT (S (NP (NN Neutron) (NNS stars)) (VP (VBP are) (NP (NP (DT the) (NNS corpses)) (PP (IN of) (NP (ADJP (VBN left) (RP over)) (NN supernova) (NNS explosions))))) (. .)))