Given the task definition and input, reply with output. In this task, you're given four sentences of a story written in natural language, and one last sentence (Sentence5). Your job is to classify whether the last sentence completes the rest of the story coherently or not by providing 'Yes' or 'No'.

Sentence1: Billy's friends thought that he was a scaredy cat. Sentence2: They dared him to go into the haunted house. Sentence3: He decided to go in and even stay the night there. Sentence4: Despite how scared he was he stayed the entire night.
Sentence5: Billy demonstrated cowardice.
No