What follows is an opinion from a United States Court of Appeals.
Intervenors who participated as parties at the courts of appeals should be counted as either appellants or respondents when it can be determined whose position they supported. For example, if there were two plaintiffs who lost in district court, appealed, and were joined by four intervenors who also asked the court of appeals to reverse the district court, the number of appellants should be coded as six.
Your task is to determine or not there was any amicus participation before the court of appeals.

Opinion:
Theo. T. TAYLOR, Appellant v. PROVIDENCE HOSPITAL, a body corporate, and Dr. Angel E. Salazar, Appellees.
No. 11759.
United States Court of Appeals for the District of Columbia.
Argued May 21, 1954.
Decided May 27, 1954.
Mr. Earl H. Davis, Washington, D. C., for appellant.
Mr. Richard W. Galiher, Washington, D. C., with whom Mr. William E. Stewart, Jr., Washington, D. C., was on the brief, for appellees.
Mr. Joseph A. Barry, Washington, D. C., entered an appearance for appellee Dr. Angel E. Salazar.
Before EDGERTON, WILBUR K. MILLER, and WASHINGTON, Circuit Judges.
PER CURIAM.
The plaintiff in a suit for alleged personal injuries appeals from a judgment for the defendants based upon a directed verdict. The District Court was clearly right.
Affirmed.

Question: Was there any amicus participation before the court of appeals?

Choices:
no amicus participation on either side
1 separate amicus brief was filed
2 separate amicus briefs were filed
3 separate amicus briefs were filed
4 separate amicus briefs were filed
5 separate amicus briefs were filed
6 separate amicus briefs were filed
7 separate amicus briefs were filed
8 or more separate amicus briefs were filed
not ascertained

Answer: 0