Question: How was the status of Italian as official language determined for the San Marino that borders the European Union?
Choices: Sixth National Population Census of the People's Republic of China
United Kingdom Census 2011
middle
administrative division valid at the moment of publication
hearth tax
United Kingdom Census 1981
de facto
United States Census
Russian Empire Census
2016 Australian census
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "San Marino" . ?e_3 <shares_border_with> ?e_1 . ?e_3 <pred:name> "European Union" . ?e_2 <pred:name> "Italian" . ?e_1 <official_language> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <official_language> ; <pred:fact_t> ?e_2 ] <determination_method> ?qpv .  }
Program:
function: Find
inputs: European Union
function: Relate
dependencies: 0
inputs: shares border with
forward
function: Find
inputs: San Marino
function: And
dependencies: 1
2
function: Find
inputs: Italian
function: QueryRelationQualifier
dependencies: 3
4
inputs: official language
determination method
Answer: de facto