About: http://webisa.webdatacommons.org/261328511

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	So generally speaking it is necessary on headings and is especially important on logos.
http://www.w3.org/ns/prov#wasQuotedFrom	designerstalk.com