About: http://webisa.webdatacommons.org/407490334

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	The mucus layer of the eye protects the underlying epithelial surface from microorganisms, the toxins they produce, and other antigens.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk