About: http://webisa.webdatacommons.org/277785100

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	Headroom refers to the distance between the top of the door and the lowest point of the ceiling or any obstruction such as a garage door opener rail, pipes, or ductwork.
http://www.w3.org/ns/prov#wasQuotedFrom	clopaydoor.com