Question: How many users does a person, whose official website is  http://www.williamorbit.com, have on his Twitter username WilliamOrbit ?
Choices: 876
2837353
197526
9
2627525
89032
34450
124408
553
50721
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.williamorbit.com" . ?e <Twitter_username> ?pv . ?pv <pred:value> "WilliamOrbit" . [ <pred:fact_h> ?e ; <pred:fact_r> <Twitter_username> ; <pred:fact_t> ?pv ] <number_of_subscribers> ?qpv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.williamorbit.com
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttrQualifier
dependencies: 2
inputs: Twitter username
WilliamOrbit
number of subscribers
Answer: 9