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 "private business and its executives". 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:
Leona HARRIS, Appellant, v. H. G. SMITHY CO., Inc., et al.
No. 22833.
United States Court of Appeals, District of Columbia Circuit.
Argued Jan. 12, 1970.
Decided June 15, 1970.
Mr. Ernest C. Dickson, Washington, D. C., for appellant.
Mr. Jerome S. Berg, Washington, D. C., for appellees. Mr. Lawrence E. Carr, Jr., Washington, D. C., was on the brief for appellees.
Before BAZELON, Chief Judge, LEVENTHAL, Circuit Judge and JAMESON, Senior District Judge.
Sitting by designation pursuant to the provisions of Title 28, U.S. Code, Section 294(d).
BAZELON, Chief Judge.
This is an appeal from a judgment dismissing an action for personal injuries. Appellant is a tenant in an apartment building owned and managed by appellees. She was injured by slipping and falling on the terrazzo floor of the apartment house lobby on a rainy day. The trial court, sitting without a jury, concluded that the landlord had neither actual nor constructive notice of the wet and slippery condition of the floor, and hence had no duty to take corrective action. Because that conclusion rests on an erroneous interpretation of the controlling principle of law, we reverse and remand for a new trial.
A landlord who rents separate parts of his premises to a number of different tenants has a duty to use reasonable care to keep the common passageways free of dangerous conditions. Pessagno v. Euclid, 72 App.D.C. 141, 112 F.2d 577 (1940). A wet and slippery floor is clearly a dangerous condition. But reasonable care requires the landlord to correct the condition only after a reasonable opportunity for notice of the danger. C. W. Simpson v. Langley, 76 U.S.App.D.C. 365, 131 F.2d 869 (1942).
The ruling below was apparently based on the view that constructive notice of a wet and slippery lobby floor could arise only from evidence that the floor had actually been wet for a substantial period of time. The trial court found appellant’s case fatally defective for failure to show that for a substantial period of time before the fall there was water on the floor or traffic in the lobby.
In this case the evidence clearly shows that at the time of the accident, rain was falling and the lobby floor was wet. The trial court so found, concluding that there was no showing of the necessary notice because there was no evidence that numerous people had passed through the lobby before the accident, tracking in water. In our view, however, evidence of a substantial period of rain is sufficient to give a landlord constructive notice of the foreseeable hazards that may result from that rain, including the risk that water will be tracked into an apartment lobby and the floor will become slippery. See Doctors Hospital, Inc. v. Badgley, 81 U.S. App.D.C. 171,156 F.2d 569 (1946).
A landlord’s duty of care must be measured by a flexible standard, that reflects community expectations and meets the needs of contemporary urban life. Levine v. Katz, 132 U.S.App.D.C. 173, 175, 407 F.2d 303, 305 n.6 (concurring opinion). Modern apartment dwellers expect not merely a space in which to live, but a “well-known package of goods and services — a package which includes * * * proper maintenance.” Javins v. First National Realty Corp., 138 U.S.App.D.C. -, -, 428 F.2d 1071, 1074 (1970). Minimal standards of proper maintenance require the landlord to anticipate dangerous conditions that recur regularly, and to take some precautions.
If rain and the normal traffic of tenants regularly result in a slippery lobby floor, then a landlord cannot wait each time it rains for notice that the floor is wet. Apartment dwellers today are entitled to assume that management will take reasonable steps to ensure the safety and cleanliness of common areas in constant use, such as the front entrance lobby. Liability for negligence does not require notice of the particular puddle that caused the fall. It is sufficient to show notice of rain, combined with the probability that in rainy weather tenants will track in water and the lobby floor will become slippery. Harris v. Joffe, 28 Cal.2d 418, 170 P.2d 454 (1946); cf. Klein v. United States, 339 F.2d 512 (2d Cir. 1964); Rodenbur v. Kaufmann, 115 U.S.App.D.C. 360, 320 F.2d 679 (1963).
The instant case turns in part, therefore, on the question whether rain had been falling for a sufficient period of time before the accident to give the landlord constructive notice of the danger of a slippery lobby floor. The findings of the trial judge are ambiguous on this point, because in his view constructive notice required not only evidence of rain but also evidence of a wet floor for a substantial period of time before the accident. His treatment of the evidence, however, requires some comment.
The plaintiff testified that it was raining shortly before she fell, at about 1 p. m., but she did not testify that it had been raining earlier in the day. Weather bureau reports were introduced to show that it had been raining all day, but the trial judge noted that these reports were based on observations taken at the National Airport, ten miles from the site of the accident, and “it is a matter of common knowledge that it may rain in one part of the city and not in another.”
We think the trial judge’s approach to the weather reports was improper as a matter of law. Weather bureau reports are not conclusive, but they certainly constitute evidence of high quality, as the same judge earlier noted in Robinson v. Park Central Apartments, 248 F.Supp. 632, 636 (D.D.C. 1965). No evidence was introduced to rebut the evidence of morning rain, or to indicate that conditions at the apartment house that morning were different from those at the airport. The evidence was therefore sufficient to present to the trier of fact the issue whether there had been a substantial period of rain at the apartment house before the accident.
If the case had been tried to a jury, the court would have instructed the jury to decide (1) whether there was a sufficient period of rain to provide constructive notice of the danger of a slippery lobby floor, and (2) if so, whether appellees exercised reasonable care in responding to that danger. On a trial to a judge there are no instructions, of course, but the same questions of fact must be resolved.
There was evidence at trial that rubber mats are commonly used on floors of this type in rainy weather. Cf. Scott v. United States, 158 F.Supp. 810 (N.D.N. Y.1957); Pignatelli v. Gimbel Bros., 285 App.Div. 625, 140 N.Y.S.2d 23 (Sup. Ct.), aff’d, 309 N.Y. 901, 131 N.E.2d 578 (1955). Indeed, the building superintendent testified that he had asked the management to install rubber mats, but was told they would only be stolen. Therefore it was his practice simply to mop the lobby floor whenever he saw or was told it needed mopping.
It may well be that a practice of prompt and frequent mopping would suffice to guard against the danger of slippery wet floors. It is for the trier of fact to determine what constitutes reasonable care under the circumstances. Seganish v. District of Columbia Safeway Stores, Inc., 132 U.S.App.D.C. 117, 121, 406 F.2d 653, 657 (1968). But the court below never inquired into the adequacy of appellee’s practices with respect to mops and rubber mats, because of its conclusion that appellee had no notice of the slippery condition of the floor and hence no duty to correct it. Since that conclusion was based on an erroneous principle of law, the case must be reversed and remanded for a new trial.
So ordered.

Question: What is the total number of appellants in the case that fall into the category "private business and its executives"? Answer with a number.

Choices:

Answer: 0