The definition of the term, and its "borders" with neighbouring terms such as folk art and outsider art, has been a matter of some controversy. Naïve art is a term usually used for the forms of fine art, such as paintings and sculptures, but made by a self-taught artist, while objects with a practical use come under folk art. But this distinction has been disputed. Another term that may be used, especially of paintings and architecture, is "provincial", essentially used for work by artists who had received some conventional training, but whose work unintentionally falls short of metropolitan or court standards.