Getting Started. Most webmasters are familiar with HTML tags on their pages.
Usually, HTML tags tell the browser how to display the information included in the tag. For example, <h1>Avatar</h1> tells the browser to display the text string "Avatar" in a heading 1 format. However, the HTML tag doesn't give any information about what that text string means—"Avatar" could refer to the hugely successful 3D movie, or it could refer to a type of profile picture—and this can make it more difficult for search engines to intelligently display relevant content to a user.
S. Thing. Thing The most generic type of item.
Instances of Thing may appear as values for the following properties More specific TypesExamples See JSON example. Full Hierarchy.