Question: What is the Twitter username for the association football club that has a team member named Chris Brown (who was born in Doncaster) starting on 2014-01-01?
Choices: AmySmart26
Bootsy_Collins
margaretcho
danwarp
ChrysalisRecs
FangoriaOficial
missjillscott
villedetours
bluejacketsnhl
rovers
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "association football club" . ?e_1 <member_of_sports_team> ?e . ?e_1 <pred:name> "Chris Brown" . ?e_1 <place_of_birth> ?e_2 . ?e_2 <pred:name> "Doncaster" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e ] <start_time> ?qpv . ?qpv <pred:date> "2014-01-01"^^xsd:date . ?e <Twitter_username> ?pv .  }
Program:
function: Find
inputs: Doncaster
function: Relate
dependencies: 0
inputs: place of birth
backward
function: Find
inputs: Chris Brown
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: member of sports team
forward
function: QFilterDate
dependencies: 4
inputs: start time
2014-01-01
=
function: FilterConcept
dependencies: 5
inputs: association football club
function: QueryAttr
dependencies: 6
inputs: Twitter username
Answer: rovers