Question: Who is the South Korea national under-23 football team member who played 21 games?
Choices: Ki Sung-yueng
Sylvester Stallone
Max Fleischer
Delroy Facey
David Byrne
Rahul Dev Burman
Chris Wood
Seol Ki-hyeon
Richard Gere
Jung Sung-ryong
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <member_of_sports_team> ?e_1 . ?e_1 <pred:name> "South Korea national under-23 football team" .  [ <pred:fact_h> ?e ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_1 ] <number_of_matches_played/races/starts> ?qpv . ?qpv <pred:unit> "1" . ?qpv <pred:value> "21"^^xsd:double .  }
Program:
function: Find
inputs: South Korea national under-23 football team
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: QFilterNum
dependencies: 1
inputs: number of matches played/races/starts
21
=
function: FilterConcept
dependencies: 2
inputs: human
function: What
dependencies: 3
Answer: Seol Ki-hyeon