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.
In some cases there is some confusion over who should be listed as the appellant and who as the respondent. This confusion is primarily the result of the presence of multiple docket numbers consolidated into a single appeal that is disposed of by a single opinion. Most frequently, this occurs when there are cross appeals and/or when one litigant sued (or was sued by) multiple litigants that were originally filed in district court as separate actions. The coding rule followed in such cases should be to go strictly by the designation provided in the title of the case. The first person listed in the title as the appellant should be coded as the appellant even if they subsequently appeared in a second docket number as the respondent and regardless of who was characterized as the appellant in the opinion.
To clarify the coding conventions, consider the following hypothetical case in which the US Justice Department sues a labor union to strike down a racially discriminatory seniority system and the corporation (siding with the position of its union) simultaneously sues the government to get an injunction to block enforcement of the relevant civil rights law. From a district court decision that consolidated the two suits and declared the seniority system illegal but refused to impose financial penalties on the union, the corporation appeals and the government and union file cross appeals from the decision in the suit brought by the government. Assume the case was listed in the Federal Reporter as follows:
United States of America,
Plaintiff, Appellant
v
International Brotherhood of Widget Workers,AFL-CIO
Defendant, Appellee.
International Brotherhood of Widget Workers,AFL-CIO
Defendants, Cross-appellants
v
United States of America.
Widgets, Inc. & Susan Kuersten Sheehan, President & Chairman
of the Board
Plaintiff, Appellants,
v
United States of America,
Defendant, Appellee.
This case should be coded as follows:Appellant = United States, Respondents = International Brotherhood of Widget Workers Widgets, Inc., Total number of appellants = 1, Number of appellants that fall into the category "the federal government, its agencies, and officials" = 1, Total number of respondents = 3, Number of respondents that fall into the category "private business and its executives" = 2, Number of respondents that fall into the category "groups and associations" = 1.
Note that if an individual is listed by name, but their appearance in the case is as a government official, then they should be counted as a government rather than as a private person. For example, in the case "Billy Jones & Alfredo Ruiz v Joe Smith" where Smith is a state prisoner who brought a civil rights suit against two of the wardens in the prison (Jones & Ruiz), the following values should be coded: number of appellants that fall into the category "natural persons" =0 and number that fall into the category "state governments, their agencies, and officials" =2. A similar logic should be applied to businesses and associations. Officers of a company or association whose role in the case is as a representative of their company or association should be coded as being a business or association rather than as a natural person. However, employees of a business or a government who are suing their employer should be coded as natural persons. Likewise, employees who are charged with criminal conduct for action that was contrary to the company policies should be considered natural persons.
If the title of a case listed a corporation by name and then listed the names of two individuals that the opinion indicated were top officers of the same corporation as the appellants, then the number of appellants should be coded as three and all three were coded as a business (with the identical detailed code). Similar logic should be applied when government officials or officers of an association were listed by name.
Your specific task is to determine the total number of appellants in the case that fall into the category "natural persons". If the total number cannot be determined (e.g., if the appellant is listed as "Smith, et. al." and the opinion does not specify who is included in the "et.al."), then answer 99.

Opinion:
Martin OWENS, a minor by Laura H. Owens, next friend, Appellant, v. CHICAGO, ROCK ISLAND and PACIFIC RAILROAD COMPANY, Appellee.
No. 6685.
United States Court of Appeals Tenth Circuit.
July 6, 1961.
Rehearing Denied Aug. 1, 1961.
Bratton, Circuit Judge, dissented.
Albert Thomson, Kansas City, Mo. (George V. Allen, Lawrence, Kan., and Robert W. Cook, Kansas City, Mo., on the brief), for appellant.
Clayton M. Davis, Topeka, Kan. (Mark L. Bennett, Topeka, Kan., on the brief), for appellee.
Before MURRAH, Chief Judge, and BRATTON and BREITENSTEIN, Circuit Judges.
MURRAH, Chief Judge.
This is an appeal from a judgment of the District Court on a directed verdict in a suit by the appellant for personal injuries, arising out of a railroad crossing accident in Lawrence, Kansas.
The salient facts are not in dispute. The only question is whether they warrant a permissible inference of negligence. If so, the case should have been submitted to the jury. See Lopez v. Denver & Rio Grande Western Railroad Company, 10 Cir., 277 F.2d 830.
The appellant was riding in a panel truck, while it was being driven in a northerly direction on Fourth Street in Lawrence, Kansas. The truck approached the railroad crossing consisting of six tracks, including two main lines —one east-bound, one west-bound. The crossing signal lights and bells were operating. The truck stopped at the south side of the southern-most tracks, and the driver and appellant observed the approach of a train traveling west. When the train had passed over the crossing to the point where the caboose was in sight, the driver of the truck proceeded across the unoccupied tracks to a point about three feet from the moving west-bound train. At this point, the rear of the truck extended over the east-bound tracks. While standing in this position, appellant noticed the approach of appellee’s train, traveling eastward on the east-bound, main track. He hollered to the driver, alighted and went to the rear of the truck, where he was first observed by the fireman and brakeman on the left side of the appellee’s engine. They warned the engineer, who immediately applied the emergency brakes.
At the point of the collision, the tracks curve rather sharply to the north, and a truck is not observable by an approaching train until it was within about 400 feet of the crossing. At this point, a train traveling 20 to 25 m. p. h. is unable to stop with the application of emergency brakes, before passing over the crossing.
After the train came into the view of the truck driver, he pulled forward toward the moving west-bound train, but apparently was unable to clear the eastbound tracks and the appellee’s eastbound train struck the rear of the truck, turning it around. Appellant was last seen moving from the rear to the east side of the truck. After the appellee’s train stopped, appellant was found near the moving train on the west-bound tracks.
Appellant relies upon a pleaded ordinance of the City of Lawrence, which provides in substance and effect that it shall be unlawful for a railroad to operate a train within the City limits “at a rate of speed in excess of 30 m. p. h., or in any manner which is dangerous to public safety.” He does not contend that the appellee’s train exceeded the prescribed speed limit, but he does contend that the railroad violated the ordinance by operating it in a manner dangerous to public safety, which is another way of saying that the train was .operated negligently under existing circumstances.
Much is said about unconstitutional vagueness of the statute, but we think violation is a concomitant of negligence, i. e., if the railroad was negligent in the circumstances, it violated the ordinance. If not, there could be no violation. In that regard, we speak of negligence in the sense of ordinary care as at common law, not the F.E.L. A.’s statutory negligence, 45 U.S.C.A. § 51 et seq., which is “significantly different from the ordinary common law negligence action * * See Rogers v. Missouri Pacific Railroad Co., 352 U.S. 500, 509, 77 S.Ct. 443, 1 L.Ed.2d 493. Making application of the common law negligence rule in cases of this kind, the Kansas courts have emphatically said that ordinary care does not impose upon the railroad a duty to operate its train at such a rate of speed that it can be stopped within the range of vision of a railroad crossing. Bunton v. Atchison, T. & S. F. Ry. Co., 100 Kan. 165, 163 P. 801; Johnson v. Killion, 179 Kan. 571, 297 P.2d 177. See also Chicago, Rock Island and Pacific Railroad Co. v. Hugh Breeding, Inc., 10 Cir., 247 F.2d 217.
Since ordinary care does not require the train to be operated at a rate of speed which would enable it to be stopped within the range of vision, it is difficult to perceive any breach of ordinary care. Through no fault of the railroad, the appellant found himself in a position of peril. When the railroad first observed him in that position, it was unable to avoid injury in the circumstances. The judgment is affirmed.
. “ * * * the law is full of instances where a man’s fate depends on his estimating rightly, that is, as the jury subsequently estimates it, some matter of degree.” Nash v. United States, 229 U.S. 373, 377, 33 S.Ct. 780, 781, 57 L.Ed. 1232.

Question: What is the total number of appellants in the case that fall into the category "natural persons"? Answer with a number.

Choices:

Answer: 1