About: http://webisa.webdatacommons.org/333402496

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	I can see how A4 is more practical in some respects (particularly when scaling or shrinking documents) and there is a logic behind it is size as this interesting article explains:
http://www.w3.org/ns/prov#wasQuotedFrom	designobserver.com