About: http://webisa.webdatacommons.org/373918286

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	Manholes, concrete or brick, including iron or steel, frames and covers, hatchways, gratings, ladders, cable racks and hangers, etc., permanently attached to manholes. 6.
http://www.w3.org/ns/prov#wasQuotedFrom	ecfr.gov