Question: When did prog rock's Kraftwerk win a Grammy Lifetime Achievement Award?
Choices: 2014-01-01
2005-06-01
1998-09-16
1996-01-24
2017-07-18
2005-10-01
2009-05-06
2014-01-16
1986-01-23
2018-05-17
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Kraftwerk" . ?e_3 <famous_people> ?e_1 . ?e_3 <pred:name> "progressive rock" . ?e_2 <pred:name> "Grammy Lifetime Achievement Award" . ?e_1 <award_received> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_2 ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: progressive rock
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Kraftwerk
function: And
dependencies: 1
2
function: Find
inputs: Grammy Lifetime Achievement Award
function: QueryRelationQualifier
dependencies: 3
4
inputs: award received
point in time
Answer: 2014-01-01