Question: Murder on the Orient Express, with train as its subject, was published on 1974-11-21 in what location?
Choices: United Kingdom
Austria
Indonesia
Sweden
Pakistan
Tokyo
West Germany
Los Angeles
People's Republic of China
German Democratic Republic
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Murder on the Orient Express" . ?e <main_subject> ?e_1 . ?e_1 <pred:name> "train" .  ?e <publication_date> ?pv . ?pv <pred:date> "1974-11-21"^^xsd:date . [ <pred:fact_h> ?e ; <pred:fact_r> <publication_date> ; <pred:fact_t> ?pv ] <place_of_publication> ?qpv .  }
Program:
function: Find
inputs: train
function: Relate
dependencies: 0
inputs: main subject
backward
function: Find
inputs: Murder on the Orient Express
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: publication date
1974-11-21
place of publication
Answer: United Kingdom