(D) in a foreign nation that is not a treaty party, and all of the
authors of the work are nationals, domiciliaries, or habitual residents
of, or in the case of an audiovisual work legal entities with
headquarters in, the United States;

(2) in the case of an unpublished work, all the authors of the work are
nationals, domiciliaries, or habitual residents of the United States,
or, in the case of an unpublished audiovisual work, all the authors are
legal entities with headquarters in the United States; or

(3) in the case of a pictorial, graphic, or sculptural work incorporated
in a building or structure, the building or structure is located in the
United States. [19]

A "useful article" is an article having an intrinsic utilitarian
function that is not merely to portray the appearance of the article or
to convey information. An article that is normally a part of a useful
article is considered a "useful article".

The author's "widow" or "widower" is the author's surviving spouse under
the law of the author's domicile at the time of his or her death,
whether or not the spouse has later remarried.

The "WIPO Copyright Treaty" is the WIPO Copyright Treaty concluded at
Geneva, Switzerland, on December 20, 1996. [20]

The "WIPO Performances and Phonograms Treaty" is the WIPO Performances
and Phonograms Treaty concluded at Geneva, Switzerland, on December 20,
1996. [21]