Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Sue and William were worried about their 7-year-old son, Kyle. Sentence2: Kyle had been acting strange for a couple days, unlike his usual self. Sentence3: Today, parental concern deepened when Kyle came home 2 hours late. Sentence4: Just as they were about to confront him, he handed over a wrapped box.

The big secret was his parents' anniversary gift, a framed drawing.