About: http://webisa.webdatacommons.org/143076448

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	In multifocal lenses, there are often ledges and other protrusions which are unsightly and unappealing to the consumer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com