opinion: HOUGH, Circuit Judge
  (after stating the facts as above). Two questions are here raised; the .first that plaintiff did not make put a prima facie case. We have above recited what we think was proven and no question of law would be elucidated by going into the matter further. It is held that plaintiff gave enough evidence to warrant a verdict, in the absence of any controverting proof.
  The other question is whether the above-quoted statement of the answer, viz. the denial of any “knowledge or information sufficient to form a belief” that plaintiff «* • • ;heretofore sold and delivered to the defendant divers goods, wares, and merchandise, for which plaintiff has been paid in full” should be treated as an allegation that the purchaser (defendant below) had procured from plaintiff below an agreement that payment of the amount of the credit should be payment 'for all the steel shipped from Montreal, no matter how much there was of it. This was substantially the only defense that plaintiff in error had, and it attempted to show an oral modification of the written contract to the effect above stated.
  It is quite true that the pleading as it stands is absurd. It is said that if plaintiff below did not intend to accept this as a plea of payment, it should have moved against the pleading and not permitted the ease to go to trial in such form. We perceive no obligation on a plaintiff to seek to amend mere absurdities in a defendant’s- answer. The pleading as it stood denied aE the material allegations of the complaint. There was an issue, and a plain one. In the light of what is now admitted, and was certainly known to this plaintiff in error, that issue was not weE chosen, to say the least; but, as it stood, we see no reason why plaintiff below should have paid any attention to such nonsense as the denial of information and belief we have quoted. Much less can plaintiff below be blamed for not discerning in this meaningless form of words an affirmative plea of payment.
  Judgment 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 "unclear". Your task is to determine what subcategory of business best describes this litigant.
choices: auto industry chemical industry drug industry food industry oil & gas industry clothing & textile industry electronic industry alcohol and tobacco industry other unclear