Question: What is the official name of the city whose OS grid reference is NZ395575?
Choices: Sunderland
People's Republic of China
City of Vancouver
Capo Verde
Durham
Tallinna Football Club Levadia
City of Los Angeles
अनुपम खेर
Αθήνησι Εθνικόν και Καποδιστριακόν Πανεπιστήμιον
Belt Valletta
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city" . ?e <OS_grid_reference> ?pv_1 . ?pv_1 <pred:value> "NZ395575" . ?e <official_name> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OS grid reference
NZ395575
function: FilterConcept
dependencies: 1
inputs: city
function: QueryAttr
dependencies: 2
inputs: official name
Answer: Sunderland