Please answer the following question: Rafael Cordero Santiago - Rafael Cordero Santiago (October 24 1942 January 17 2004) better known as Churumba was the Mayor of Ponce Puerto Rico from 1989 to 2004. Many considered him as a synonym of Ponce being baptized as the Greatest Lion (or El Leon Mayor in Spanish) in reference to the city's nickname of The Lion City of Ponce. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Office Holder