About: http://webisa.webdatacommons.org/201557614

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	Assuming that the sample is a powder, its holder must face upwardly, as shown.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com