About: http://webisa.webdatacommons.org/255324283

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	Weather-sealing is another feature: there is nothing particularly innovative about that (except some of the material science, perhaps), but fitting it into more lens designs is progress.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com