About: http://webisa.webdatacommons.org/125453710

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	So maintenance is a real cost, but not a lot of companies just consider it a cost of business.
http://www.w3.org/ns/prov#wasQuotedFrom	energy.gov