Question: What big city is the birthplace of George Frideric Handel, and also the twin-city of Hildesheim (the one whose elevation (above sea level) is 78 metre) since 1st January 1990 ?
Choices: Dnipro
Stuttgart
Regensburg
Bordeaux
Aachen
Fort Smith
Utrecht
Wuppertal
Halle (Saale)
Magdeburg
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "big city" . ?e <twinned_administrative_body> ?e_1 . ?e_1 <pred:name> "Hildesheim" . ?e_1 <elevation_above_sea_level> ?pv . ?pv <pred:unit> "metre" . ?pv <pred:value> "78"^^xsd:double .  [ <pred:fact_h> ?e ; <pred:fact_r> <twinned_administrative_body> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:date> "1990-01-01"^^xsd:date . ?e_2 <place_of_birth> ?e . ?e_2 <pred:name> "George Frideric Handel" .  }
Program:
function: Find
inputs: Hildesheim
function: FilterNum
dependencies: 0
inputs: elevation above sea level
78 metre
=
function: Relate
dependencies: 1
inputs: twinned administrative body
backward
function: QFilterDate
dependencies: 2
inputs: start time
1990-01-01
=
function: FilterConcept
dependencies: 3
inputs: big city
function: Find
inputs: George Frideric Handel
function: Relate
dependencies: 5
inputs: place of birth
forward
function: FilterConcept
dependencies: 6
inputs: big city
function: And
dependencies: 4
7
function: What
dependencies: 8
Answer: Halle (Saale)