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:
Anne K. GOSSMANN, Transferee of Model Farms Dairy, Appellant, v. Seldon R. GLENN, Collector of Internal Revenue, Appellee.
No. 11268.
United States Court of Appeals Sixth Circuit.
Oct. 11, 1951.
Skaggs, Hays & Fahey, Louisville, Ky., Wm. Mac Kenzie, Jr., Louisville, Ky., of counsel, for appellant.
Theron L. Caudle, Charles Oliphant, Ellis N. Slack, Washington, D. C., David Walls, and Charles F. Wood, all of Louisville, Ky., Henry L. Spencer, Washington, D. C., Dee Hanson, Washington, D. €., for appellee.
Before ALLEN, MARTIN and Mc-ALLISTER, Circuit Judges.
PER CURIAM.
This appeal from the dismissal by the District Court of the taxpayer’s complaint, asserting a claim for refund of taxes based on the disallowance of a claimed deduction as an alleged ordinary and necessary büsiness expense, came on to be heard; and the transcript of record and the oral arguments and briefs of the attorneys for the contending parties have been duly considered;
And it appearing that the findings of fact of the District Court are supported by substantial evidence and are not clearly erroneous, and that the court’s conclusions of law are based upon sound and correct legal principles;
It is ordered that the judgment of the District Court be affirmed. 91 F.Supp. 1005.

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