Group 1 - The article discusses the process of obtaining electronic invoices for train tickets purchased through various means, including online and at ticket counters [5][9][14] - It outlines the steps for passengers and purchasers to verify their identities and request invoices, emphasizing the importance of using valid identification [8][9][10] - The article provides specific instructions for both online and offline ticket purchases, detailing the necessary steps to complete the invoice request process [9][14] Group 2 - The article mentions a recent announcement regarding the VAT policy for second-hand car sales, indicating a reduced VAT rate of 0.5% for eligible transactions [14] - It defines second-hand cars in the context of the policy and specifies that the policy will remain in effect until December 31, 2027 [14] - The article also addresses the applicability of tax relief policies for small-scale taxpayers transitioning to general taxpayers, clarifying that certain conditions must be met to retain benefits [19]