mainEntityOfPage

http://schema.org/mainEntityOfPage
http://www.w3.org/1999/02/22-rdf-syntax-ns#Property
http://schema.org/CreativeWork
http://schema.org/URL
http://schema.org/Thing
http://schema.org/mainEntity
Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See background notes for details.
mainEntityOfPage