In+theme+of+arbitration+ritual,+so that+the exception+of+incompetence+of the+referees+(per+non -existence,+disability+or+ineffectiveness+of the+convention+of arbitration)+can+promptly consider+I know llevata+in the+first+defense+profit+subsequent+to the acceptance+of the assignment+from+part+of the+referees,+as+requested+by art.+817,+co.+2,+cod.+proc.+civ.,+not+it is+sufficient+invoke+a+chiUU nque+reason+invalidity+of the+convention+arbitration,+ie+turning+independently+from the+legal profile+in+base+to+which+the+contestation+is+formulated,+expected+that is+just+the illustraz ion+of the+reasons+post office+to+foundation+of the+deduced+disability+a+qualify+the+question+made+worth+and+to+distinguish it+from+others+possible+that+can be+not+founded+or+inadmissible.