opinion: PER CURIAM.
  This is an appeal from a judgment of the District Court of Massachusetts. The defendant at the close of the evidence moved for a directed verdict in its favor, which was refused. This is the only assignment of error. The jury found for the plaintiff.
  If the jury believed the plaintiff’s testimony and that of her sister, the plaintiff entered the defendant’s store in Boston for the purpose of making purchases. While walking along one of the aisles of the store between two counters where she could properly travel in making her purchases, a salesgirl, ■ after ringing up a sale on a cash register, walked backward from behind the counter into the aisle and stepped on the plaintiff’s foot, evidently breaking the skin, from which blood poisoning developed.
  The plaintiff and her sister positively identified the salesgirl who they claimed caused the injury. There was much conflict of testimony as to the identity of the salesgirl, and whether at the time she was in the act of performing any duties her employment required. We think there was evidence warranting the submission of the case to the jury.
  While an alternative -verdict, so called, was taken, if the jury believed the plaintiff’s evidence, we see no question of law involvecb on which the judgment can be reversed. The salesgirl, from the plaintiff’s evidence, was evidently employed at the time at the counter in question. There is nothing in the record to indicate as a matter of law that the plaintiff was not in the exercise of due care, or had any warning that the salesgirl was about to step back into the aisle without stopping or looking.' The charge of the presiding judge was not printed, and we must assume that he gave full and correct instructions as to what constitutes negligence and contributory negligence, and what injuries can be said as a matter of law to be the result, of pure accident.
  The judgment of the District Court is affirmed, with costs.
instruction: 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 "private business (including criminal enterprises)", specifically "trade". Your task is to determine what subcategory of business best describes this litigant.
choices: auto, auto parts, auto repairs chemical drug food oil, natural gas, gasoline textile, clothing electronic alcohol or tobacco general merchandise other  unclear