( ( Beginning ( with ( ( an introduction ) ( to ( planet earth ) ) ) ) ) ( , ( ( ( ( ( ( the ( undergraduate major ) ) ( has ( five tracks ) ) ) , ) and ) ( students ( are ( given ( ( many options ) ( for courses ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (VBG Beginning) (PP (IN with) (NP (NP (DT an) (NN introduction)) (PP (TO to) (NP (NN planet) (NN earth)))))) (, ,) (S (NP (DT the) (JJ undergraduate) (NN major)) (VP (VBZ has) (NP (CD five) (NNS tracks)))) (, ,) (CC and) (S (NP (NNS students)) (VP (VBP are) (VP (VBN given) (NP (NP (JJ many) (NNS options)) (PP (IN for) (NP (NNS courses))))))) (. .)))
Beginning with an introduction to  planet earth, the undergraduate major has five tracks, and students are given many options for courses.
(ROOT (S (NP (EX There)) (VP (VBP have) (VP (VBN been) (NP (CD five) (JJ major) (JJ massive) (NNS extinctions)) (SBAR (IN since) (S (NP (NN life)) (VP (VBD began) (PP (IN on) (NP (NN earth)))))))) (. .)))