About: http://webisa.webdatacommons.org/58515859

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	Furthermore, because the comparison is made between ink that has been used and fresh ink from the same batch or lot, it is possible to customize the ink composition by holding Pd at a constant value other than zero.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com