( There ( ( have ( been ( ( five ( mass extinctions ) ) ( in ( ( the ( Earth 's ) ) history ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP have) (VP (VBN been) (NP (NP (CD five) (JJ mass) (NNS extinctions)) (PP (IN in) (NP (NP (DT the) (NN Earth) (POS 's)) (NN history)))))) (. .)))
There have been five mass extinctions in the Earth's history.
(ROOT (S (NP (CD Five) (JJ mass) (NNS distinctions)) (VP (VBP have) (ADVP (RB radically)) (VP (VBN altered) (NP (NP (DT the) (NN history)) (PP (IN of) (NP (NN life)))))) (. .)))