Instructions: 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'.
Input: Sentence1: Billy liked sitting by the pond. Sentence2: He would take a book and sit under the tree. Sentence3: His book was about frogs. Sentence4: He looked out onto the pond and a frog was staring at him.
Sentence5: Billy wasn't thinking about frogs.
Output:
No