Question: When did Shanghai (the one that is the twinned administrative body of Dunedin) start to be the twinned administrative body of Liverpool (the one with a population of 513441)?
Choices: 1809-09-05
1994-06-25
1963-12-12
1988-08-09
1991-06-26
1970
1998-12-02
1999-01-01
1952-08-14
1999-01-11
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Shanghai" . ?e_1 <twinned_administrative_body> ?e_3 . ?e_3 <pred:name> "Dunedin" . ?e_2 <pred:name> "Liverpool" . ?e_2 <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "513441"^^xsd:double . ?e_1 <twinned_administrative_body> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <twinned_administrative_body> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Dunedin
function: Relate
dependencies: 0
inputs: twinned administrative body
backward
function: Find
inputs: Shanghai
function: And
dependencies: 1
2
function: Find
inputs: Liverpool
function: FilterNum
dependencies: 4
inputs: population
513441
=
function: QueryRelationQualifier
dependencies: 3
5
inputs: twinned administrative body
start time
Answer: 1999-01-01