What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Opinion:
UNITED STATES POSTAL SERVICE v. NATIONAL ASSOCIATION OF LETTER CARRIERS, AFL-CIO
No. 87-59.
Argued April 20, 1988
Decided April 27, 1988
Glen D. Nager argued the cause for petitioner. With him on the briefs were Solicitor General Fried, Assistant Attorney General Willard, Deputy Solicitor General Wallace, William Kanter, and Marc Richman.
Keith E. Secular argued the cause and filed a brief for respondent.
Briefs of amici curiae urging affirmance were filed for the American Federation of Labor and Congress of Industrial Organizations by David M. Silberman and Laurence Gold; and for the National Council on Compulsive Gambling, Inc., by Albert B. Lewis.
Per Curiam.
The writ of certiorari is dismissed as improvidently granted.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?

Choices:
stay, petition, or motion granted
affirmed (includes modified)
reversed
reversed and remanded
vacated and remanded
affirmed and reversed (or vacated) in part
affirmed and reversed (or vacated) in part and remanded
vacated
petition denied or appeal dismissed
certification to or from a lower court
no disposition

Answer: 8