{"@context":"https://schema.org","@type":"Property","@id":"https://schema.org/mainContentOfPage","rdfs:label":"mainContentOfPage","rdfs:comment":"Indicates if this web page element is the main subject of the page.","schema:domainIncludes":[{"@id":"https://schema.org/WebPage"}],"schema:rangeIncludes":[{"@id":"https://schema.org/WebPageElement"}]}