Question: What does Superman (which was published 1999-05-31) have to do with DC Comics?
Choices:
professorship
exported to
characters
product or material produced
ancestral home
film editor
separated from
country for sport
film crew member
publisher
Answer: publisher
SPARQL: SELECT DISTINCT ?p WHERE { ?e_1 <pred:name> "Superman" . ?e_1 <publication_date> ?pv . ?pv <pred:date> "1999-05-31"^^xsd:date . ?e_2 <pred:name> "DC Comics" . ?e_1 ?p ?e_2 .  }
Program:
function: Find
inputs: Superman
function: FilterDate
dependencies: 0
inputs: publication date
1999-05-31
=
function: Find
inputs: DC Comics
function: QueryRelation
dependencies: 1
2