diff --git a/FacilityOntology.ttl b/FacilityOntology.ttl
index 5966505..6066cdf 100644
--- a/FacilityOntology.ttl
+++ b/FacilityOntology.ttl
@@ -404,7 +404,7 @@ cco:MilitaryHeadquartersFacility rdf:type owl:Class ;
 ###  http://www.ontologyrepository.com/CommonCoreOntologies/Mine
 cco:Mine rdf:type owl:Class ;
          rdfs:subClassOf cco:Facility ;
-         cco:definition "A Facility that is designed to support the extraction of minerals or other geological materials from the earth from an orebody, lode, vein, seam, reef, or placer deposit which forms the mineralized package of interest to the miner."@en ;
+         cco:definition "A Facility that is designed to support the extraction of minerals or other geological materials from an orebody, lode, vein, seam, reef, or placer deposit within the earth."@en ;
          cco:definition_source "https://en.wikipedia.org/w/index.php?title=Mining&oldid=1062844924"^^xsd:anyURI ;
          cco:is_curated_in_ontology "http://www.ontologyrepository.com/CommonCoreOntologies/Mid/FacilityOntology"^^xsd:anyURI ;
          rdfs:label "Mine"@en .