Question: When did the city that has VN-HN as their ISO 3166-2 code get their dialing code of 244?
Choices:
2017-06-17
2007-10-02
1861-03-13
2017-05-21
1964-09-17
2006-09-08
2011-09-13
1896
2016-01-12
2000
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: ISO 3166-2 code
VN-HN
function: FilterConcept
dependencies: 1
inputs: city
function: QueryAttrQualifier
dependencies: 2
inputs: local dialing code
244
start time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city" . ?e <ISO_3166-2_code> ?pv_1 . ?pv_1 <pred:value> "VN-HN" . ?e <local_dialing_code> ?pv . ?pv <pred:value> "244" . [ <pred:fact_h> ?e ; <pred:fact_r> <local_dialing_code> ; <pred:fact_t> ?pv ] <start_time> ?qpv .  }
Answer: 2017-06-17