Question: When did the constitutional monarchy whose country is Eswatini start having the licence plate code SD?
Choices: 1989-10-23
2004-02-25
1958-02-23
1999-03-12
1917-03-31
1999-08-01
1935-01-01
1867-07-01
1993-08-28
1946-12-19
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "constitutional monarchy" . ?e <country> ?e_1 . ?e_1 <pred:name> "Eswatini" .  ?e <licence_plate_code> ?pv . ?pv <pred:value> "SD" . [ <pred:fact_h> ?e ; <pred:fact_r> <licence_plate_code> ; <pred:fact_t> ?pv ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Eswatini
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: constitutional monarchy
function: QueryAttrQualifier
dependencies: 2
inputs: licence plate code
SD
start time
Answer: 1935-01-01