Definition: This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
Input: Passage: Since the Kallikratis programme reform entered into effect on 1 January 2011, Greece has consisted of thirteen regions subdivided into a total of 325 municipalities. The 54 old prefectures and prefecture-level administrations have been largely retained as sub-units of the regions. Seven decentralized administrations group one to three regions for administrative purposes on a regional basis. There is also one autonomous area, Mount Athos (Greek: Agio Oros, "Holy Mountain"), which borders the region of Central Macedonia. Question: What is the one autonomous area in Greece?
Output:
Mount Athos