assignment_3_afkerhousse.txt

1. Get all the properties that can be applied to instances of the Politician class  
 
PREFIX db: <http://dbpedia.org/ontology/> 
 
SELECT DISTINCT ?p WHERE { 
?s a db:Politician . 
?s ?p ?o
}  
 
2. Get all the properties, except rdf:type, that can be applied to instances of the Politician class 
 
PREFIX db: <http://dbpedia.org/ontology/> 
PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> 

 
SELECT DISTINCT ?p WHERE { 
?s a db:Politician . 
?s ?p ?o . 
FILTER (?p != rdf:type) 
}  
 
3. Which different values exist for the properties, except for rdf:type, applicable to the instances of Politician? 
 
PREFIX db: <http://dbpedia.org/ontology/> 
PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> 

 
SELECT DISTINCT ?v WHERE { 
?s a db:Politician . 
?s ?p ?v . 
FILTER (?p != rdf:type) 
}  
 
4. For each of these applicable properties, except for rdf:type, which different values do they take globally for all those instances? 
 
PREFIX db: <http://dbpedia.org/ontology/> 
PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
PREFIX rdfs:<http://www.w3.org/2000/01/rdf-schema#> 

 
SELECT DISTINCT ?p ?v WHERE { 
?s a db:Politician . 
?s ?p ?v
FILTER(?p !=rdf:type)
}  
 
5. For each of these applicable properties, except for rdf:type, how many DISTINCT values do they take globally for all those instances? 
 
PREFIX db: <http://dbpedia.org/ontology/> 
 
SELECT DISTINCT ?p COUNT(?v) WHERE { 
?s a db:Politician . 
?s ?p ?v . 
FILTER (?p != rdf:type) 
}