Given the task definition and input, reply with output. In this task, you're given a text which is the body of the document. Indicate your answer as "Yes" if the text is about a person, otherwise indicate your answer as "No". Don't generate anything else apart from "Yes" or "No". Pay attention that for your answer to be "Yes", the passage should be generally about a person. Mentions of people in the text don't necessarily mean the text is about a person.

Text: Yangguan or Yangguan Pass (traditional Chinese: ; simplified Chinese: ; literally Sun Gate) is a mountain pass that was fortified by Emperor Wu of the Western Han Dynasty and used as an outpost in ancient China. It is located approximately 70 kilometres (43 mi) southwest of Dunhuang in the Gansu province of Northwest China which was in ancient times the westernmost administrative center of China.
No