A succession of discoveries has taught us about archeabacteria, very ancient and primitive single-cell organisms that live in the places you'd least expect anything to call home.
( ( ( A succession ) ( of discoveries ) ) ( ( has ( ( taught us ) ( about ( ( ( ( archeabacteria , ) ( very ancient ) ) and ) ( ( primitive ( single-cell organisms ) ) ( that ( live ( ( in ( the places ) ) ( you ( ( 'd least ) ( ( expect anything ) ( to ( call home ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN succession)) (PP (IN of) (NP (NNS discoveries)))) (VP (VBZ has) (VP (VBN taught) (NP (PRP us)) (PP (IN about) (NP (NP (NN archeabacteria)) (, ,) (NP (RB very) (JJ ancient)) (CC and) (NP (NP (JJ primitive) (JJ single-cell) (NNS organisms)) (SBAR (WHNP (WDT that)) (S (VP (VBP live) (SBAR (S (PP (IN in) (NP (DT the) (NNS places))) (NP (PRP you)) (VP (MD 'd) (ADVP (JJS least)) (VP (VB expect) (NP (NN anything)) (S (VP (TO to) (VP (VB call) (NP (NN home))))))))))))))))) (. .)))
Several discoveries have showed us the existence of archaebacteria on Mars.
( ( Several discoveries ) ( ( have ( showed ( us ( ( the existence ) ( of ( archaebacteria ( on Mars ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Several) (NNS discoveries)) (VP (VBP have) (VP (VBD showed) (S (NP (PRP us)) (NP (NP (DT the) (NN existence)) (PP (IN of) (NP (NP (NN archaebacteria)) (PP (IN on) (NP (NNP Mars))))))))) (. .)))