About: http://webisa.webdatacommons.org/167094662

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	Then, since an em is a unit based on the size of the element's font, you need to make sure that each of the elements that you are trying to size to 52em have the same font-family and font-size css defined.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com