<http://webisa.webdatacommons.org/97394567> <http://www.w3.org/ns/prov#wasQuotedFrom> <therockcrystalshop.com.au> . <http://webisa.webdatacommons.org/97394567> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/468416163> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/97394567> . <http://webisa.webdatacommons.org/97394567> <http://www.w3.org/ns/prov#value> "Excellent for study especially arts and sciences, stimulating insight and boosting memory." . <http://webisa.webdatacommons.org/prov/40304790> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/97394567> .