story: Trudy felt sad so thought she needed a pet. She decided to buy a Puli. She called some Puli owners in town and asked to buy one. The third Puli owner agreed to sell Trudy one of her dogs. So Trudy bought a Puli and is now much happier.
 selected sentence: The third Puli owner agreed to sell Trudy one of her dogs.
The owner agrees to sell Trudy one of her dogs >Causes> Trudy feel(s) happy