About: http://webisa.webdatacommons.org/24093784

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	My memory is a little rusty, but it is indeed true that, at least in the case of Lake Superior, it is very obvious that the lake was created by magma subsidence.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org