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: Dan was setting up all his dominoes. Sentence2: He lined them up all over the house. Sentence3: Then he carefully knocked over the first one. Sentence4: The whole sequence of dominoes toppled over.

Dan was thrilled with his crafty work!