The schematic function of a sentence refers to expressing some kind of notification, caution, command, or request through a sentence, the purpose of which is to require others to do or not perform certain actions in accordance with the ideas expressed in the sentence. According to the above definition, which of the following is schematic functions that do not reflect the sentence? ['All students please come to the playground.', 'Please do not step on the lawn.', 'Prohibition of the production of counterfeit and shoddy products.', 'The sales department should now be meeting.']