If you're using Schema.org, you could add extra Attributes, in addition to Individuals required from the guidelines I do not Assume This really is a difficulty with markup Unless of course there is a thing instrinsically Improper with JSON+LD formatted rich snippets (as opposed to the inline markup wide variety) https://dailybookmarkhit.com/story19543997/not-known-facts-about-automatische-google-rich-snippets-json-ld-opengraph-seo