vereign authority of that nation, or
which was first published in that nation. The President may revise,
suspend, or revoke any such proclamation or impose any conditions or
limitations on protection under a proclamation.

Section 105. Subject matter of copyright: United States Government
works.

Copyright protection under this title is not available for any work of
the United States Government, but the United States Government is not
precluded from receiving and holding copyrights transferred to it by
assignment, bequest, or otherwise.

Section 106. Exclusive rights in copyrighted works.

Subject to sections 107 through 118, the owner of copyright under this
title has the exclusive rights to do and to authorize any of the
following:

(1) to reproduce the copyrighted work in copies or phonorecords;

(2) to prepare derivative works based upon the copyrighted work;

(3) to distribute copies or phonorecords of the copyrighted work to the
public by sale or other transfer of ownership, or by rental, lease, or
lending;

(4) in the case of literary, musical, dramatic, and choreographic
works, pantomimes, and motion pictures and other audiovisual works, to
perform the copyrighted work publicly; and

(5) in the case of literary, musical, dramatic, and choreographic
works, pantomimes, and pictorial, graphic, or sculptural works,
including the individual images of a motion picture or other
audiovisual work, to display the copyrighted publicly.

Section 107. Limitations on exclusive rights: Fair use.

Notwithstanding the provisions of section 106, the fair use of a
copyrighted work, including such use by reproduction in copies or
phonorecords or by any other means specified by that section, for
purposes such as criticism, comment, news reporting, teaching
(including multiple copies for classroom use), scholarship, or
research, is not an infringement of copyright. In determining whether
the use made of a work in any particular case is a fair use the factors
to be considered shall include--

(1) the purpose and character of the use, including whether such use is
of a commercial nature or is for nonprofit educational purposes;

(2) the nature of the copyrighted work;

(3) the amount and substantiality of the portion used in relation to
the copyrighted work as a whole; and

(4) the effect of the use upon the potential market for or value of the
copyrighted work.

Section 108. Limitations on exclusive