About: http://webisa.webdatacommons.org/52932116

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 second material forms a hard surface which will not be gouged or penetrated by the point of a sharp accessing instrument such as a needle or a trocar.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com