Question: Japan utilizes the official language Japanese, tell me the determination method of this value.
Choices: tradition
2016 Australian census
de facto
United Kingdom Census 1981
United States Census
estimation process
population projection
census
Census
rated voltage
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Japan" . ?e_2 <pred:name> "Japanese" . ?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: Japan
function: Find
inputs: Japanese
function: QueryRelationQualifier
dependencies: 0
1
inputs: official language
determination method
Answer: de facto