Question: What is the twitter username of person who is a member of Democratic Unionist political Party?
Choices: TheRealAnnaCamp
bahamasmusic
katewalshmusic
mohanlal
peterweirmla
thetimmcgraw
RCSA
eurovision
jonathansfrakes
Pref_Fukuoka
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <member_of_political_party> ?e_1 . ?e_1 <pred:name> "Democratic Unionist Party" .  ?e <Twitter_username> ?pv .  }
Program:
function: Find
inputs: Democratic Unionist Party
function: Relate
dependencies: 0
inputs: member of political party
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: Twitter username
Answer: peterweirmla