Question: Does the basketball team headquartered in Boston have a Twitter username of celtics?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "basketball team" . ?e <headquarters_location> ?e_1 . ?e_1 <pred:name> "Boston" .  ?e <Twitter_username> ?pv . ?pv <pred:value> "celtics" .  }
Program:
function: Find
inputs: Boston
function: Relate
dependencies: 0
inputs: headquarters location
backward
function: FilterConcept
dependencies: 1
inputs: basketball team
function: QueryAttr
dependencies: 2
inputs: Twitter username
function: VerifyStr
dependencies: 3
inputs: celtics