Question: Which US city has been the twinned administrative body of Brandenburg's capital with the NUTS code of DE4 since 1990?
Choices: Waukegan
Franklin
New Haven
Perugia
Miami
Boulder
Sioux Falls
Spokane
Oakland
Columbus
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e_1 <twinned_administrative_body> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "city" . ?e_2 <capital> ?e_1 . ?e_2 <pred:name> "Brandenburg" . ?e_2 <NUTS_code> ?pv . ?pv <pred:value> "DE4" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <twinned_administrative_body> ; <pred:fact_t> ?e ] <start_time> ?qpv . ?qpv <pred:year> 1990 .  }
Program:
function: Find
inputs: Brandenburg
function: FilterStr
dependencies: 0
inputs: NUTS code
DE4
function: Relate
dependencies: 1
inputs: capital
forward
function: FilterConcept
dependencies: 2
inputs: city
function: Relate
dependencies: 3
inputs: twinned administrative body
forward
function: QFilterYear
dependencies: 4
inputs: start time
1990
=
function: FilterConcept
dependencies: 5
inputs: city of the United States
function: What
dependencies: 6
Answer: Sioux Falls