Question: What is the OCLC control number of the written work whose author is Don DeLillo ?
Choices: 635065117
248628819
317823082
164597340
27417158
434252597
268677549
289946
171466
50441437
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "written work" . ?e <author> ?e_1 . ?e_1 <pred:name> "Don DeLillo" .  ?e <OCLC_control_number> ?pv .  }
Program:
function: Find
inputs: Don DeLillo
function: Relate
dependencies: 0
inputs: author
backward
function: FilterConcept
dependencies: 1
inputs: written work
function: QueryAttr
dependencies: 2
inputs: OCLC control number
Answer: 50441437