About: http://webisa.webdatacommons.org/91349062

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	Indirect costs were few ??? machines were made mostly of wood, installed mostly within existing buildings, and their maintenance was normally within the competence of existing artisans.
http://www.w3.org/ns/prov#wasQuotedFrom	marxists.org