<http://webisa.webdatacommons.org/201694620> <http://www.w3.org/ns/prov#wasQuotedFrom> <wisegeek.com> . <http://webisa.webdatacommons.org/201694620> <http://www.w3.org/ns/prov#value> "Iron melts at 1811 K. The temperature of the Earth's molten core is about 5650 K. At 7000 K, most familiar elements and compounds, such as carbon, vaporize." . <http://webisa.webdatacommons.org/prov/102988744> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/201694620> . <http://webisa.webdatacommons.org/201694620> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .