Question: What date is when the literary award that Ursula K. Le Guin won in 1996 was started?
Choices:
1739
1787-04-30
1670
1805-03-17
1991
1898-03-16
1158
1813-03-12
1930-01-11
1575
Program:
function: Find
inputs: Ursula K. Le Guin
function: Relate
dependencies: 0
inputs: winner
backward
function: QFilterYear
dependencies: 1
inputs: point in time
1996
=
function: FilterConcept
dependencies: 2
inputs: literary award
function: QueryAttr
dependencies: 3
inputs: inception
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "literary award" . ?e <winner> ?e_1 . ?e_1 <pred:name> "Ursula K. Le Guin" .  [ <pred:fact_h> ?e ; <pred:fact_r> <winner> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:year> 1996 . ?e <inception> ?pv .  }
Answer: 1991