( ( By ( comparing ( ( the sequence ) ( of ( ( the genomes ) ( of ( different organisms ) ) ) ) ) ) ) ( , ( we ( ( ( can actually ) ( reconstruct ( ( a lot ) ( of ( what ( 's ( happened ( in evolution ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN By) (S (VP (VBG comparing) (NP (NP (DT the) (NN sequence)) (PP (IN of) (NP (NP (DT the) (NNS genomes)) (PP (IN of) (NP (JJ different) (NNS organisms))))))))) (, ,) (NP (PRP we)) (VP (MD can) (ADVP (RB actually)) (VP (VB reconstruct) (NP (NP (DT a) (NN lot)) (PP (IN of) (SBAR (WHNP (WP what)) (S (VP (VBZ 's) (VP (VBN happened) (PP (IN in) (NP (NN evolution))))))))))) (. .)))
By comparing the sequence of the genomes of different organisms, we can actually reconstruct a lot of what's happened in evolution.
(ROOT (S (NP (VBG Comparing) (NN genome) (NNS sequences)) (VP (VBZ provides) (NP (NNS clues)) (PP (TO to) (NP (NN evolution) (CC and) (NN development)))) (. .)))