About: http://webisa.webdatacommons.org/203746921

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	While oxygen passes freely through soft lenses, bacterial contamination and other problems can occur, requiring replacement of lenses on a regular basis.
http://www.w3.org/ns/prov#wasQuotedFrom	encyclopedia.com