Detailed Instructions: 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.
See one example below:
Problem: Sentence1: Rick grew up in a troubled household. Sentence2: He never found good support in family, and turned to gangs. Sentence3: It wasn't long before Rick got shot in a robbery. Sentence4: The incident caused him to turn a new leaf.
Solution: He is happy now.
Explanation: As mentioned in last sentence, the incident turned a new leaf to Rick's life; this part completes the story properly.

Problem: Sentence1: During the war, Dave was ordered to stop an enemy train. Sentence2: He strung a set of chains across the tracks and waited. Sentence3: The train came rushing at the chains. Sentence4: Dave watched as the train broke through all the chains.
Solution:
Dave was sad that his plan did not work.