Question: What is the work period of the person that won the 1957 National Board of Review Award for Best Actress?
Choices: 1866
1897
1983
1932
1814
1952
1916
1893
1963
1971
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <award_received> ?e_1 . ?e_1 <pred:name> "National Board of Review Award for Best Actress" .  [ <pred:fact_h> ?e ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:year> 1957 . ?e <work_period_(start)> ?pv .  }
Program:
function: Find
inputs: National Board of Review Award for Best Actress
function: Relate
dependencies: 0
inputs: award received
backward
function: QFilterYear
dependencies: 1
inputs: point in time
1957
=
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: work period (start)
Answer: 1952