About: http://webisa.webdatacommons.org/300117850

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	Alkalis are often hydroxides of alkali metals (metals that belong to group IA of the periodic table, including Li, Na, K, Rb, Cs, and Fr))
http://www.w3.org/ns/prov#wasQuotedFrom	loc.gov