About: http://webisa.webdatacommons.org/43030124

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	therefore, my only option is to check all the pipes are connected, in case the fan is blowing into a tube not connected to the rest, or if there is a hole in he pipes somewhere?
http://www.w3.org/ns/prov#wasQuotedFrom	fordownersclub.com