Question: When was the ranking of the national association football team (whose country is Nigeria) has a ranking of 7?
Choices:
1994-05-17
2018-09-26
1945-12-01
1997-04-09
2017-03-31
2002-10-23
2011-01-16
1983-04-11
1961-01-01
1919
Program:
function: Find
inputs: Nigeria
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: national association football team
function: QueryAttrQualifier
dependencies: 2
inputs: ranking
7
point in time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "national association football team" . ?e <country> ?e_1 . ?e_1 <pred:name> "Nigeria" .  ?e <ranking> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "7"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <ranking> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Answer: 1994-05-17