story: Lily was getting ready for Halloween. She was dressing up as a princess. Just before it was time to go, her mom gave her a gift. It was a really nice tiara for her costume. Lily thanked her mom and then put the tiara on.
 selected sentence: Just before it was time to go, her mom gave her a gift.
Lily's mom buys Lily a gift >Causes/Enables> Lily's mom gives Lily a gift