<http://webisa.webdatacommons.org/prov/49424464>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/371744547> .
<http://webisa.webdatacommons.org/371744547>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .
<http://webisa.webdatacommons.org/prov/411251484>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/371744547> .
<http://webisa.webdatacommons.org/371744547>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/371744547>	<http://www.w3.org/ns/prov#value>	"presence of a base, such as sodium hydride, potassium carbonate," .