The Semantic Web is a project proposed by Tim Berners-Lee (who developed www) to improve the convenience of the Internet. In the world of the Internet, information is sent using HTML, but HTML is not suitable for analysis by scripts (= low searchability), so it provides a more advanced search and information collection method. Was advocated for.
In the SEO world, structured data has been involved with the Semantic Web in the form of, structured data by setting the, more search engine crawler offers easy-to-read HTML to (= contributions to the Semantic Web).
Google has its own list and display frame in Serps based on structured data . This creates an environment where general content holders can easily interact with structured data and the Semantic Web.