( ( Sudden extinctions ) ( ( would ( ( be ( very suggestive ) ) ( of ( ( ( a ( dramatic event ) ) , ) ( such ( as ( ( the impact ) ( of ( a comet ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Sudden) (NNS extinctions)) (VP (MD would) (VP (VB be) (ADJP (RB very) (JJ suggestive)) (PP (IN of) (NP (NP (DT a) (JJ dramatic) (NN event)) (, ,) (PP (JJ such) (IN as) (NP (NP (DT the) (NN impact)) (PP (IN of) (NP (DT a) (NN comet))))))))) (. .)))
Sudden extinctions would be very suggestive of a dramatic event, such as the impact of a comet.
(ROOT (S (NP (NP (ADJP (JJ Sudden) (CC and) (JJ dramatic)) (NNS losses)) (PP (IN of) (NP (NN biodiversity)))) (VP (VBP are) (VP (VBN called) (NP (JJ mass) (NN extinction)))) (. .)))