Action to annul an arbitration award. Objection as to the non-application of the penalty of constructive confession (art. 385, § 1, CPC/15) in view of a party's failure to appear at the hearing. Confession that has a relative nature and does not automatically lead to the granting of the thesis sustained by the opposing party. Failure to demonstrate any of the hypotheses of art. 32 of the Brazilian Arbitration Act. Validity of the arbitration award: