Question: Is the Libris-URI of a person, the producer of the rhythm and blues piece called Stand By Me,  0xbfk1kj4d24m4z ?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <producer> ?e . ?e_1 <pred:name> "Stand by Me" . ?e_1 <genre> ?e_2 . ?e_2 <pred:name> "rhythm and blues" .  ?e <Libris-URI> ?pv . ?pv <pred:value> "0xbfk1kj4d24m4z" .  }
Program:
function: Find
inputs: rhythm and blues
function: Relate
dependencies: 0
inputs: genre
backward
function: Find
inputs: Stand by Me
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: producer
forward
function: FilterConcept
dependencies: 4
inputs: human
function: QueryAttr
dependencies: 5
inputs: Libris-URI
function: VerifyStr
dependencies: 6
inputs: 0xbfk1kj4d24m4z