Administrative confirmation: refers to the administrative organs and legally authorized organizations to screen relevant legal facts in accordance with statutory authorities and procedures, and determine administrative actions to manage a certain legal status of the counterparty through determination, certification, and other methods. Which of the following are not administrative confirmations? ['According to the "Tendering and Bidding Law", a court found that a tendering agency violated relevant laws and regulations in a bidding activity, colluded with the bidder privately to obtain improper benefits, and confirmed that the bidding was invalid.', 'A traffic accident occurred on a highway and caused liability disputes. After the traffic police arrived at the scene, after investigation and understanding, it was determined that driver A should bear the main responsibility.', 'The cadres of a local city tax bureau Xiaoding and Xiaoyang were born out of work—some contradictions were too noisy. They kept arguing with Director Li. After understanding the situation, Director Li thought Xiaoyang should bear the main responsibility and criticized education Xiao Yang.', 'Zhao was a professional fish farmer. Last winter, he died unfortunately due to the rescue of those who fell into the water. According to the law, the relevant government departments identified him as a martyr.']