About: http://webisa.webdatacommons.org/455984016

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	Your query is kind of useless, IMO, because what you want is the shortest posts that link to YouTube.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com