Umui Kaji ( Ryukyuan: Thought Wind) is Rimi Natsukawa's fifth original album released on March 9 2007 (2007-03-09). According to Natsukawa title was chosen for the album as it gave an image of so many thoughts put into song. Of course it's not a strong wind but a fresh wind I want to reach the listeners. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Album