, meaning that one phrase/class is denoted being an occasion of another term/class, and it has precisely the same characteristics. We could also see it as a kid-father or mother romance. Generally, rich snippets use structured info schema markup that usually has particular markup principles for each rich snippet, However https://bookmarklinx.com/story19562528/the-smart-trick-of-json-schema-primary-key-that-no-one-is-discussing