Yuxue-Liang.txt

/******Advanced set of SPARQL queries***/

QUESTION 1: Get all the properties that can be applied to instances of the Politician class

SELECT DISTINCT ?properties

WHERE
{
?x a <http://dbpedia.org/ontology/Politician>. 
?x ?properties ?y
} 
LIMIT 100

QUESTION 2: Get all the properties, except rdf:type, that can be applied to instances of the Politician class

SELECT DISTINCT ?properties

WHERE
{
?x a <http://dbpedia.org/ontology/Politician>. 
?x ?properties ?y
FILTER(?properties != rdf:type)
} 
LIMIT 100

QUESTION 3: Which different values exist for the properties, except for rdf:type, applicable to the instances of Politician?
SELECT DISTINCT ?value

WHERE
{
?x a <http://dbpedia.org/ontology/Politician>. 
?x ?properties ?value
FILTER(?properties != rdf:type) 
} 
LIMIT 100

QUESTION 4: For each of these applicable properties, except for rdf:type, which different values do they take globally for all those instances?
SELECT DISTINCT ?properties ?value

WHERE 
{
?x a <http://dbpedia.org/ontology/Politician>.
?x ?prop ?value
filter(?prop != rdf:type)
}
LIMIT 100

QUESTION 5: For each of these applicable properties, except for rdf:type, how many distinct values do they take globally for all those instances?
SELECT DISTINCT ?properties COUNT (DISTINCT ?value) as ?count

WHERE
{
?x rdf:type <http://dbpedia.org/ontology/Politician>. 
?x ?properties ?value
FILTER(?properties != rdf:type)
} 
LIMIT 100