Which of the following conclusions are all based on the employees' reimbursement documents received by various functional departments of Xidan Feizhou Commercial Building in 1998. After these comprehensive statistics were made, some functional departments received reimbursement documents submitted by employees. Which of the following conclusions cannot be overturned by the new fact of reimbursement documents? ? ['Only 14 employees in the supermarket department submitted reimbursement documents and reimbursed at least 8700 yuan.', 'Only three employees of the public relations department have submitted reimbursement documents, and the total amount is not more than 2,600 yuan.', 'At least 8 employees in the logistics department have submitted reimbursement documents, and the total reimbursement is 5,234 yuan.', 'At least 4 employees in the accounting department paid reimbursement documents and reimbursed at least 2500 yuan.']