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:
No. 253.
United States v. Pullman Company et al.; Otis & Co. v. United States et al.; Chesapeake & Ohio Railroad Co. et al. v. United States et al.; and Glore, Forgan & Co. v. United States et al.
No. 254.
No. 255.
No. 256.
Argued March 11, 12, 13, 1947.
Decided March 31, 1947.
Holmes Baldridge argued the cause for the United States. With him on the brief were Acting Solicitor General Washington and Assistant Attorney General Berge. Thurman Arnold argued the cause for appellant in No. 254. With him on the brief was Arne C. Wiprud. Robert J. Bulkley argued the cause for appellants in No. 255. With him on the brief were Frank J. Meistrell and Herbert G. Pillen. Leo F. Tierney argued the cause for appellant in No. 256. With him on the brief was Louis A. Kohn. George Wharton Pepper argued the cause for the Pullman Company et al., appellees. With him on the brief were Ralph M. Shaw, Seth W. Richardson, Lowell M. Greenlaw, Frederick H. Spotts and Guy A. Gladson. Jacob Aronson argued the cause for the railroad appellees. With him on the brief were Emmett E. Mclnnis, Sydney R. Prince, Harold H. McLean, Henry L. Walker and Albert Ward. Appearances were entered by Francis H. Scheetz for appellant in No. 256; John Dickinson for the Atchison, Topeka & Santa Fe Railway Co. et al.; and Leo J. Hassenauer, V. C. Shuttle-worth and H. E. Wilmarth for the Order of Railway Conductors of America, appellees.
Per Curiam:
The judgment is affirmed by an equally divided Court.
Mr. Justice Jackson took no part in the consideration or decision of these cases.

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