story: I went to a piano concert and fell in love with the instrument. I decided to take lessons so that I could play as beautifully. I practiced every day for years. My instructor said I had become a great pianist. I finally had my own piano concert after all that work.
 selected sentence: I decided to take lessons so that I could play as beautifully.
I want(s) to take lessons >Motivates> I decide to take lessons