SPARQL Query for all Books by George Orwell

Question

I created this query to return all books that are notable works by George Orwell but it returns no result.

PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX dbp: <http://dbpedia.org/resource/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>

SELECT ?name ?title where {
   ?person foaf:name ?name .
   ?title dbo:author ?person .
   ?title dbo:notableWork dbp:George_Orwell .
}

I cannot seem to figure out why there is no result.

I am running the query in http://dbpedia.org/snorql

Answer 1

Don't you have the triples about notable works in the wrong order?

Try rewriting based on this working query

SELECT * 
WHERE {
:George_Orwell dbo:notableWork ?title 
}

.

title
:Nineteen_Eighty-Four
:Animal_Farm

You can also bind :George_Orwell to a variable and ask more about that:

SELECT * 
WHERE {
values ?author { :George_Orwell } .
?author rdfs:label ?l .
?title ?p ?author .
?title rdf:type  dbo:Book .
filter (lang(?l) = "en")
}

and DESCRIBE things

describe :Animal_Farm