Question: What is the number of visual artwork whose origins is the sovereign state that is the country of Heisman Trophy ?
Choices: 1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <country_of_origin> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "sovereign state" . ?e_2 <country> ?e_1 . ?e_2 <pred:name> "Heisman Trophy" .   }
Program:
function: Find
inputs: Heisman Trophy
function: Relate
dependencies: 0
inputs: country
forward
function: FilterConcept
dependencies: 1
inputs: sovereign state
function: Relate
dependencies: 2
inputs: country of origin
backward
function: FilterConcept
dependencies: 3
inputs: visual artwork
function: Count
dependencies: 4
Answer: 1977