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.
When coding the detailed nature of participants, use your personal knowledge about the participants, if you are completely confident of the accuracy of your knowledge, even if the specific information is not in the opinion. For example, if "IBM" is listed as the appellant it could be classified as "clearly national or international in scope" even if the opinion did not indicate the scope of the business. 

Your task concerns the first listed appellant. The nature of this litigant falls into the category "natural person (excludes persons named in their official capacity or who appear because of a role in a private organization)". Your task is to determine the citizenship of this litigant as indicated in the opinion.

Opinion:
Lenine STROLLO, Appellant, v. Noah L. ALLDREDGE, Warden, United States Penitentiary, Lewisburg, Pennsylvania.
No. 71-2060.
United States Court of Appeals, Third Circuit.
Submitted June 16, 1972 Under Third Circuit Rule 12(6).
Decided June 30, 1972.
T. Max Hall, McNerney, Page, Vanderlin & Hall, Williamsport, Pa., for appellant.
S. John Cottone, U. S. Atty., Lewis-burg, Pa., for appellee.
Before STALEY, VAN DUSEN and ADAMS, Circuit Judges.
OPINION OF THE COURT
PER CURIAM:
Appellant, a Federal prisoner, appeals from the district court’s dismissal of his petition for writ of habeas corpus.
Appellant was sentenced in the United States District Court for the Northern District of Ohio in 1963. Following a fruitless appeal of his conviction, he began serving the imposed sentence in October 1967. It is appellant’s position that the sentence imposed was for a term of three years. The Government contends that the sentence imposed was for a term of nine years, and the judgment and commitment so provide.
The district court dismissed appellant’s petition on the grounds that the determination of the question of the length of his sentence was for the sentencing court and that the proper and exclusive remedy is by motion pursuant to 28 U.S.C. § 2255.
Appellant argues that his ease involves a factual dispute between jailer and prisoner as to the duration of imprisonment. He contends that where it appears that the jailer obtained custody lawfully but wrongfully extended the period of imprisonment, a Federal court sitting at the venue of incarceration has a duty, when presented with a habeas corpus petition, to conduct appropriate proceedings, determine the facts, make conclusions, and enter appropriate relief.
Our examination of the record in the instant case discloses that this is not, as appellant contends, a dispute between prisoner and jailer over the term of commitment. The petition and answer clearly present a dispute over the term of the sentence imposed by the court in the Northern District of Ohio, and therefore one within the ambit of § 2255.
We have repeatedly held that as to issues cognizable by the sentencing court under § 2255, a motion under that section supersedes habeas corpus and provides the exclusive remedy. Sobell v. Attorney General, 400 F.2d 986 (C.A.3), cert. denied, 393 U.S. 940, 89 S.Ct. 302, 21 L.Ed.2d 277 (1968); Litterio v. Parker, 369 F.2d 395 (C.A.3, 1966); United States ex rel. Leguillou v. Davis, 212 F.2d 681 (C.A.3, 1954).
The order of the district court will be affirmed.

Question: This question concerns the first listed appellant. The nature of this litigant falls into the category "natural person (excludes persons named in their official capacity or who appear because of a role in a private organization)". What is the citizenship of this litigant as indicated in the opinion?

Choices:
not ascertained
US citizen
alien

Answer: 0