Generally, it is used to mark paragraphs when we analyze texts. Use "∨" when the article is divided into large paragraphs, and the next paragraph has a new meaning. If you divide the meaning of a big paragraph into small paragraphs, use "|". If the meaning of the same paragraph is different from that of the paragraph, the mark "|" indicates that the meaning of this layer has ended and another layer will be started.
Above, I hope to help you.