story: Each night, Joan's tiny dog ran to her bedside. Joan placed a stool so the dog could jump on the bed. Suddenly, Joan's dog stopped coming into the bed at night. When Joan turned on a light to see what was wrong, the dog came. Joan had to put a night light next to the dog's stool.
 selected sentence: Joan had to put a night light next to the dog's stool.
Joan put a nightlight next to the dog's stool >Causes> The dog feel(s) happy