Question: What caused dissolution, abolishment, or demolition of a sovereign state on 12th October 1897, whose  OSM tag or key is Tag:historic:period=joseo ?
Choices: Motion Picture Production Code
Basic Treaty
Gwangmu Reform
resignation
death of spouse
renunciation of citizenship
Soviet invasion of Poland
Second Armistice at Compiègne
death
French Committee of National Liberation
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "sovereign state" . ?e <OSM_tag_or_key> ?pv_1 . ?pv_1 <pred:value> "Tag:historic:period=joseon" . ?e <dissolved,_abolished_or_demolished> ?pv . ?pv <pred:date> "1897-10-12"^^xsd:date . [ <pred:fact_h> ?e ; <pred:fact_r> <dissolved,_abolished_or_demolished> ; <pred:fact_t> ?pv ] <end_cause> ?qpv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OSM tag or key
Tag:historic:period=joseon
function: FilterConcept
dependencies: 1
inputs: sovereign state
function: QueryAttrQualifier
dependencies: 2
inputs: dissolved, abolished or demolished
1897-10-12
end cause
Answer: Gwangmu Reform