Question: what is the OSM tag or key for Joseon?
Choices: Tag:denomination=baptist
Tag:cuisine=french
Tag:denomination=greek_orthodox
Tag:denomination=churches_of_christ
Tag:historic:period=joseon
Tag:denomination=united_church_of_christ
Tag:sport=chess
Tag:healthcare:speciality=community
Key:genus
Tag:cuisine=italian
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Joseon" . ?e <OSM_tag_or_key> ?pv .  }
Program:
function: Find
inputs: Joseon
function: QueryAttr
dependencies: 0
inputs: OSM tag or key
Answer: Tag:historic:period=joseon