Question: Does a person who is a sibling of Ziggy Marley use the Twitter username damianmarley?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <sibling> ?e_1 . ?e_1 <pred:name> "Ziggy Marley" .  ?e <Twitter_username> ?pv . ?pv <pred:value> "damianmarley" .  }
Program:
function: Find
inputs: Ziggy Marley
function: Relate
dependencies: 0
inputs: sibling
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: Twitter username
function: VerifyStr
dependencies: 3
inputs: damianmarley
Answer: yes