About: http://webisa.webdatacommons.org/383210130

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 taking this impression, impression tray 16 is first filled with an impression material 18, which is typically a gel formed by mixing a powder, such as alginate, with water.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com