story: Francisco hadn't seen his mother in Years. He saved up money diligently for the flight to her home in Iowa. Finally the day had come for Francisco to fly to Iowa. He and his mother were very happy to see each other. Francisco promised he would never wait so long to see her again.
 selected sentence: Francisco hadn't seen his mother in Years.
Francisco hasn't seen his mother in years >Causes/Enables> Francisco saved up money to see his mother