Question: How many languages are the official languages of  Việt Nam Dân Chủ Cộng Hòa, which is the native label of a historical country in question?
Choices:
1
2
3
4
5
6
7
8
9
10
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: native label
Việt Nam Dân Chủ Cộng Hòa
function: FilterConcept
dependencies: 1
inputs: historical country
function: Relate
dependencies: 2
inputs: official language
forward
function: FilterConcept
dependencies: 3
inputs: language
function: Count
dependencies: 4
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "language" . ?e_1 <official_language> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "historical country" . ?e_1 <native_label> ?pv . ?pv <pred:value> "Việt Nam Dân Chủ Cộng Hòa" .   }
Answer: 1