Question: When is the publication date for the single made before 2002?
Choices: 2003-02-27
2012-06-26
1998-09-17
2015-07-12
2009-09-03
2001-03-05
2007-11-27
1993-09-16
2014-01-14
2012-10-05
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "single" . ?e <inception> ?pv_1 . ?pv_1 <pred:year> ?v_1 . FILTER ( ?v_1 < 2002 ) . ?e <publication_date> ?pv .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
2002
<
function: FilterConcept
dependencies: 1
inputs: single
function: QueryAttr
dependencies: 2
inputs: publication date
Answer: 2001-03-05