About: http://webisa.webdatacommons.org/79262172

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	My suspect is that the search engine thinks that when someone write u??a means una and, in Spanish, this word is an article so there is not a word to search for because articles are so common.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com