Question: When did Starship Troopers written by Robert A. Heinlein receive Hugo Award for Best Novel?
Choices:
1790
1949-03-24
1870-12-01
1789-01-01
2009-02-01
2007-08-01
1919
2013-01-31
1960
2003-08-01
Program:
function: Find
inputs: Robert A. Heinlein
function: Relate
dependencies: 0
inputs: author
backward
function: Find
inputs: Starship Troopers
function: And
dependencies: 1
2
function: Find
inputs: Hugo Award for Best Novel
function: QueryRelationQualifier
dependencies: 3
4
inputs: award received
point in time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Starship Troopers" . ?e_1 <author> ?e_3 . ?e_3 <pred:name> "Robert A. Heinlein" . ?e_2 <pred:name> "Hugo Award for Best Novel" . ?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 .  }
Answer: 1960