Task: Text Completion
Input (English): Sentence1: Debra's twins had talked about building a sand castle for a week. Sentence2: She decided to surprise them with a trip to the beach on her day off. Sentence3: She purchased plastic pails of different sizes to act as molds. Sentence4: Debra taught them to fill a pail with sand to flip them carefully.
Output (English): They took pictures of the castle for their scrapbook when it was done.