About: http://webisa.webdatacommons.org/257503813

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	Vertical positioning means allow a particle to be drawn towards a ion transport measuring means, such as a hole, such as at least in the Z-axis where gravity is also in the Z-axis.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au