Question: When did Hanover (whose country is Kingdom of Prussia) become the twinned administrative body of Rouen?
Choices: 1967-01-01
2009-07-04
1947-08-15
1966-01-01
2007-04-17
1666
1977-09-20
1945-12-18
2017-09-07
1971-10-10
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Hanover" . ?e_1 <country> ?e_3 . ?e_3 <pred:name> "Kingdom of Prussia" . ?e_2 <pred:name> "Rouen" . ?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: Kingdom of Prussia
function: Relate
dependencies: 0
inputs: country
backward
function: Find
inputs: Hanover
function: And
dependencies: 1
2
function: Find
inputs: Rouen
function: QueryRelationQualifier
dependencies: 3
4
inputs: twinned administrative body
start time
Answer: 1966-01-01