About: http://webisa.webdatacommons.org/385789146

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	Then they assume the amount of parent or daughter elements (polonium and lead for example) in a sample has not been altered by processes other than radioactive decay.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com