About: http://webisa.webdatacommons.org/372895002

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	For a solid material or other surfaces, the first step is to wipe (rub) the exposed surface with a white sheet of analysis paper (100 analysis sheets are supplied with the kit, or any white filter paper or cotton swab could be used).
http://www.w3.org/ns/prov#wasQuotedFrom	clu-in.org