About: http://webisa.webdatacommons.org/448118176

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	5 ng is an absolute value and these things are usually done as concentrations.
http://www.w3.org/ns/prov#wasQuotedFrom	freerepublic.com