About: http://webisa.webdatacommons.org/408637438

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	- Furthermore, please take into account that some nothings are doors and some nothings are open, therefore one needs at least those two kinds of nothings to maintain a state of nothing as an open door.
http://www.w3.org/ns/prov#wasQuotedFrom	spacecollective.org