sentence: tube and train , but is there a future for them or not ? I am going to answer this question by discussing disadvantages and advantages and , finally , I will give my personal opinion .
modified: tube and train , but is there a future for it or not ? , I am going to respond this question giving disadvantanges and advantages and finally I give my personal opinion .
transformation: PRON, PUNCT, VERB, PREP, VERB, SPELL, PUNCT, PUNCT, VERB:TENSE