Question: What person became a member of the association football club (whose Twitter username is bfc_official) in 1936?
Choices: Chris Wood
Ross Turnbull
Billy Boyd
George Stevens
Alan Moore
Kevin Betsy
Leo Bertos
John Logan
John Oliver
Paul Walker
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <member_of_sports_team> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "association football club" . ?e_1 <Twitter_username> ?pv . ?pv <pred:value> "bfc_official" .  [ <pred:fact_h> ?e ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:year> 1936 .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Twitter username
bfc_official
function: FilterConcept
dependencies: 1
inputs: association football club
function: Relate
dependencies: 2
inputs: member of sports team
backward
function: QFilterYear
dependencies: 3
inputs: start time
1936
=
function: FilterConcept
dependencies: 4
inputs: human
function: What
dependencies: 5
Answer: John Logan