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: Every morning I wake up to the bird's crow. Sentence2: He sits outside my window to say hello. Sentence3: I watch him fly into the sky. Sentence4: He always gets so very high.

I know it's morning when I hear the bird's crow.