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: Maria wanted to learn Spanish. Sentence2: She decided to fully immerse herself in it. Sentence3: She bought a one way ticket to Spain. Sentence4: After six months, Maria could speak fluent Spanish.

Maria was proud to learn a new language so quickly.