Please answer the following question: One Rockwell East Tower - One Rockwell East Tower is an condominium in Rockwell Center Makati Philippines. The building will be part of the One Rockwell building complex. It is the smallest in the complex and it stands 165 m (541 ft) from the ground. 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:
Building