Question: What is the connection between Luther (the one whose publication date is 1968) to United States of America?
Choices:
allegiance
costume designer
country of origin
screenwriter
illustrator
board member
creator
derivative work
based on
legislative body
Answer: country of origin
SPARQL: SELECT DISTINCT ?p WHERE { ?e_1 <pred:name> "Luther" . ?e_1 <publication_date> ?pv . ?pv <pred:year> 1968 . ?e_2 <pred:name> "United States of America" . ?e_1 ?p ?e_2 .  }
Program:
function: Find
inputs: Luther
function: FilterYear
dependencies: 0
inputs: publication date
1968
=
function: Find
inputs: United States of America
function: QueryRelation
dependencies: 1
2