<http://webisa.webdatacommons.org/210268112>	<http://www.w3.org/ns/prov#value>	"Alkali metal refers to lithium, sodium, potassium, cesium or rubidium, Sodium and potassium are preferred, especially potassium." .
<http://webisa.webdatacommons.org/prov/410545047>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/210268112> .
<http://webisa.webdatacommons.org/prov/135025087>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/210268112> .
<http://webisa.webdatacommons.org/210268112>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/210268112>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/353914843>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/210268112> .