Question: What is the publication date of a single whose OCLC control number is 16386945 ?
Choices:
1989-03-09
2010-12-29
1950
2007-10-24
2007
2000-12-14
1998-04-10
2005-01-06
1983-12-25
2003-11-11
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OCLC control number
16386945
function: FilterConcept
dependencies: 1
inputs: single
function: QueryAttr
dependencies: 2
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "single" . ?e <OCLC_control_number> ?pv_1 . ?pv_1 <pred:value> "16386945" . ?e <publication_date> ?pv .  }
Answer: 1950