Definition: In this task you are given a story and a question regarding that story. You must judge whether the question is answerable based on the info given to you. Label the instances as "Answerable" or "Not Answerable" based on your judgment. the story and the question are separated by a new line character.
Input: Cam called his friend Joe to find out where Joe was. Joe explained that he was at the diner and invited Cam. Cam drove to the nearest diner and looked for Joe. Joe was nowhere to be seen. Cam called Joe and Joe said he was at a different diner.
Why did Cam call his friend Joe?

Answerable