About: http://webisa.webdatacommons.org/301473508

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	difficult, yet especially important, in science materials which are necessarily
http://www.w3.org/ns/prov#wasQuotedFrom	asa3.org