About: http://webisa.webdatacommons.org/235935425

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	Calcium, barium and magnesium starting compounds, such as their carbonate or oxide compounds, may also be added if it is desired to substitute some or all of the barium with calcium, strontium and/or magnesium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de