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:
PARKER SEAL CO. v. CUMMINS
No. 75-478.
Argued October 12, 1976
Decided November 2, 1976
Leonard H. Becker argued the cause for petitioner. With him on the briefs was Paul S. Ryerson.
Thomas L. Hogan argued the cause for respondent. With him on the briefs was James C. Hickey.
Deputy Solicitor General Wallace argued the cause for the United States et al. as amici curiae urging affirmance., With him on the brief were Solicitor General Bork, Assistant Attorney General Pottinger, Mark L. Evans, Brian K. Landsberg, Dennis J. Dimsey, Abner W. Sibal, Joseph T. Eddins, Beatrice Rosenberg, and Gerald D. Letwin
Briefs of amici curiae urging reversal were filed by John O’B. Clarke, Jr., William G. Mahoney, and Plato E. Papps for the International Association of Machinists and Aerospace Workers, and by Dick H. Woods and George E. Feldmiller for Trans World Airlines, Inc.
Briefs of amici curiae urging affirmance were filed by Warren L. Johns, Philip B. Kurland, and Alan L. Unikel for the Seventh-Day Adventist Church; by James W. Respess for the Americans United for Separation of Church and State; by Nathan Lewin, Dennis Rapps, and Howard I. Rhine for the National Jewish Commission on Law and Public Affairs; and by Leo Pfeffer for the Synagogue Council of America et al.
Per Curiam.
The judgment is affirmed by an equally divided Court.
Mr. Justice Stevens took no part in the consideration or decision of this case.

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: 1