Question: In Liverpool, England, which location is there with the street address, Pier Head?
Answer(s):
answer: Royal Liver Building

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.04lh6)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.04lh6 ns:travel.travel_destination.tourist_attractions ?x .
?x ns:location.location.street_address ?c .
?c ns:location.mailing_address.street_address "Pier Head"@en . 
}