Question: What is the connection between Tower of London (whose release date is 1939-01-01) and the United States of America?
Choices: location of formation
sports season of league or competition
head of state
country of origin
record label
captain
production designer
lyrics by
approved by
dissertation submitted to
SPARQL: SELECT DISTINCT ?p WHERE { ?e_1 <pred:name> "Tower of London" . ?e_1 <publication_date> ?pv . ?pv <pred:date> "1939-01-01"^^xsd:date . ?e_2 <pred:name> "United States of America" . ?e_1 ?p ?e_2 .  }
Program:
function: Find
inputs: Tower of London
function: FilterDate
dependencies: 0
inputs: publication date
1939-01-01
=
function: Find
inputs: United States of America
function: QueryRelation
dependencies: 1
2
Answer: country of origin