About: http://webisa.webdatacommons.org/313947281

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	In addition to magnesium and calcium containing products of the precipitation reaction, compounds of interest include those based on silicon, aluminum, iron, boron and other elements.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com