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:
Harry Sylvester BARNES, Appellant, v. UNITED STATES of America.
No. 13962.
United States Court of Appeals Eighth Circuit.
Aug. 23, 1949.
Harry Sylvester Barnes, pro se.
Sam M. Wear, United States Attorney, and Harry F. Murphy, Assistant United States Attorney, Kansas City, Mo., for Appellee.
PER CURIAM.
Appeal from District Court dismissed, on motion of appellee.

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