Question: When did Lucerne become Potsdam's twin administrative body?
Choices: 2006-06-16
2001-10-10
1998-07-03
2002-01-01
1992-01-13
2018-07-09
1871-05-07
2011-09-09
1993-03-21
1958-10-07
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Lucerne" . ?e_2 <pred:name> "Potsdam" . ?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: Lucerne
function: Find
inputs: Potsdam
function: QueryRelationQualifier
dependencies: 0
1
inputs: twinned administrative body
start time
Answer: 2002-01-01