well i i'm doing computer science computer engineering
( well ( ( i i ) ( 'm ( doing ( computer ( science ( computer engineering ) ) ) ) ) ) )
(ROOT (FRAG (ADVP (RB well)) (NP (NP (FW i) (FW i)) (SBAR (S (VP (VBP 'm) (VP (VBG doing) (NP (NN computer) (NN science) (NN computer) (NN engineering)))))))))
I switched my major last semester.
( I ( ( switched ( my ( major ( last semester ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD switched) (NP (PRP$ my) (JJ major) (JJ last) (NN semester))) (. .)))