About: http://webisa.webdatacommons.org/328888179

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	Sodium and potassium are examples of metals that are soft and chemically very reactive; they tarnish quickly in air and are most familiar as their salts.
http://www.w3.org/ns/prov#wasQuotedFrom	daviddarling.info