Question: How many written works from the USA are designated by ISBN-13 number 978-1-85227-381-1?
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "written work" . ?e <country> ?e_1 . ?e_1 <pred:name> "United States of America" .  ?e <ISBN-13> ?pv . ?pv <pred:value> "978-1-85227-381-1" .  }
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: written work
function: FindAll
function: FilterStr
dependencies: 3
inputs: ISBN-13
978-1-85227-381-1
function: FilterConcept
dependencies: 4
inputs: written work
function: And
dependencies: 2
5
function: Count
dependencies: 6
Answer: 0