( Macro-evolution ( ( is ( ( the science ) ( that ( claims ( ( all species ) ( evolved ( from ( ( one-celled ( organisms billions ) ) ( of ( years ago ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Macro-evolution)) (VP (VBZ is) (NP (NP (DT the) (NN science)) (SBAR (WHNP (WDT that)) (S (VP (VBZ claims) (NP (NP (DT all) (NN species)) (VP (VBN evolved) (PP (IN from) (NP (NP (JJ one-celled) (NNS organisms) (NNS billions)) (PP (IN of) (NP (NP (NNS years)) (ADVP (IN ago))))))))))))) (. .)))
Macro-evolution is the science that claims all species evolved from one-celled organisms billions of years ago.
(ROOT (S (NP (DT The) (JJ first) (VBG living) (NNS cells)) (VP (MD may) (VP (VB have) (VP (VBN evolved) (ADVP (NP (QP (RB around) (CD 4) (CD billion)) (NNS years)) (RB ago))))) (. .)))