About: http://webisa.webdatacommons.org/35936012

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	Obstacles can be made of any inert substance that would not affect the condition of the sample and they can be made using the same material that can be used for fabricating the electrodes, e.g. silver, carbon, gold or platinum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com