Question: Which award, whose official opening date is after 1939, has the smallest visitor count per year?
Choices: Rock and Roll Hall of Fame
Royal Victorian Chain
Independent Spirit Award for Best Documentary Feature
Grammy Award for Best Metal Performance
Pro Football Hall of Fame
Genie Award for Best Achievement in Editing
Latin Grammy Award for Best Male Pop Vocal Album
Independent Spirit Award for Best Female Lead
Golden Globe Award for Best Animated Feature Film
Grammy Award for Best Reggae Album
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "award" . ?e <date_of_official_opening> ?pv_1 . ?pv_1 <pred:year> ?v_1 . FILTER ( ?v_1 > 1939 ) . ?e <visitors_per_year> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: date of official opening
1939
>
function: FilterConcept
dependencies: 1
inputs: award
function: SelectAmong
dependencies: 2
inputs: visitors per year
smallest
Answer: Pro Football Hall of Fame