About: http://webisa.webdatacommons.org/342629719

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	It is possible, and I would really appreciate if somebody who owns Sigma and other Canon, Nikon, Sony, Fuji brands to provide a side by side comparison.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com