From 6686b47328e6178da2dfee2310f32bb859200b3d Mon Sep 17 00:00:00 2001
From: GassiGiuseppe <g.gassi@studenti.poliba.it>
Date: Thu, 18 Sep 2025 20:23:10 +0200
Subject: [PATCH] Added SQL to obtain wikipedia url with movies

---
 docs/DBPEDIA.md | 55 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/docs/DBPEDIA.md b/docs/DBPEDIA.md
index df5d2a7..36cc6b7 100644
--- a/docs/DBPEDIA.md
+++ b/docs/DBPEDIA.md
@@ -134,3 +134,58 @@ WHERE {
   ))
 }
 ```
+#### Wikipedia-movie
+a.k.a the file with the wikipedia abstract
+```SQL
+PREFIX dbo:  <http://dbpedia.org/ontology/>
+PREFIX dbp:  <http://dbpedia.org/property/>
+PREFIX dbr:  <http://dbpedia.org/resource/>
+PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+
+SELECT  ?subject , ?object
+WHERE {
+  ?subject foaf:primaryTopic ?object .
+  ?object rdf:type dbo:Film 
+}
+```
+
+#### Reverse
+```SQL
+PREFIX dbo:  <http://dbpedia.org/ontology/>
+PREFIX dbp:  <http://dbpedia.org/property/>
+PREFIX dbr:  <http://dbpedia.org/resource/>
+PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+
+SELECT ?subject, ?relationship, ?object
+WHERE {
+  ?subject ?relationship ?object .
+  ?object rdf:type dbo:Film .
+  ?a foaf:primaryTopic ?object
+  FILTER (?relationship NOT IN (
+    dbo:wikiPageRedirects,
+    dbo:wikiPageExternalLink,
+    dbo:wikiPageWikiLink,
+    foaf:primaryTopic
+  ))
+}
+```
+
+```SQL
+PREFIX dbo:  <http://dbpedia.org/ontology/>
+PREFIX dbp:  <http://dbpedia.org/property/>
+PREFIX dbr:  <http://dbpedia.org/resource/>
+PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+
+SELECT ?subject, ?relationship, ?object
+WHERE {
+  ?subject ?relationship ?object .
+  ?object rdf:type dbo:Film .
+  ?a foaf:primaryTopic ?object
+  FILTER (?relationship NOT IN (
+    dbo:wikiPageRedirects,
+    dbo:wikiPageExternalLink,
+    dbo:wikiPageWikiLink,
+    foaf:primaryTopic
+  ))
+
+```
\ No newline at end of file