story: Evan wanted a pair of jean shorts for the summer. He shopped around, but every store was too expensive. Then he decided to try to make his own. He carefully cut the legs off an old pair of jeans. Soon he had a homemade new pair of jean shorts!
 selected sentence: He carefully cut the legs off an old pair of jeans.
He want(s) jean shorts >Motivates> He cuts the legs off a pair of jeans