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: My three girlfriends and I went out on the lake in our canoe. Sentence2: A boy that I like saw us and swam out to our boat. Sentence3: I should have expected it when he tipped us over. Sentence4: He swam back to shore leaving us to tip it back up.

I should have been mad but it was the best day ever.