Question: Is a11443820 the CANTIC-ID for the person who is a performer of Sweeney Todd: The Demon Barber of Fleet Street (whose librettist is Stephen Sondheim)?
Choices: yes
no
unknown
unknown
unknown
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SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <performer> ?e . ?e_1 <pred:name> "Sweeney Todd: The Demon Barber of Fleet Street" . ?e_1 <librettist> ?e_2 . ?e_2 <pred:name> "Stephen Sondheim" .  ?e <CANTIC-ID> ?pv . ?pv <pred:value> "a11443820" .  }
Program:
function: Find
inputs: Stephen Sondheim
function: Relate
dependencies: 0
inputs: librettist
backward
function: Find
inputs: Sweeney Todd: The Demon Barber of Fleet Street
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: performer
forward
function: FilterConcept
dependencies: 4
inputs: human
function: QueryAttr
dependencies: 5
inputs: CANTIC-ID
function: VerifyStr
dependencies: 6
inputs: a11443820
Answer: no