sentence: I just want to express what I think is painful , and I think coming back to your own home after many years of being away and seeing your closest person has departed is the most painful feeling ever .
modified: I just want to express about what I think painful , and I think coming back to your own home after many years of parting and seeing your closest person have departed is the most painful feelings ever .
transformation: PREP, VERB, OTHER, VERB:SVA, NOUN:NUM