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: Regina got a guitar for her birthday, this year! Sentence2: She really wanted to learn how to play it, so she asked for lessons. Sentence3: The next week, she met her new instructor, and learned two chords! Sentence4: The aspiring musician practiced every day, until her fingers hurt.

Six months later, she and her friends started a band.