from-negatives-to-knowledge
📊 SPARQL Queries
🔍 Query #1: Graph of People from WikiProject African Diaspora
This CONSTRUCT query builds a graph of individuals associated with the WikiProject African diaspora (Q15304953). It includes their place of birth, date of birth/death, and occupation using schema.org and skos vocabularies.
CONSTRUCT {
?item a skos:Concept, schema:Person .
?item skos:prefLabel ?itemLabel .
?item skos:definition ?description .
?item schema:birthDate ?dateOfBirth .
?item schema:deathDate ?dateOfDeath .
?item schema:birthPlace ?placeOfBirth .
?item schema:occupation ?occupation .
?occupation a skos:Concept, schema:Occupation .
?occupation skos:prefLabel ?occupationLabel .
?occupation schema:description ?occupation_description .
?placeOfBirth a skos:Concept, schema:Place .
?placeOfBirth skos:prefLabel ?placeOfBirthLabel .
?placeOfBirth schema:description ?placeOfBirth_description .
}
WHERE {
?item wdt:P5008 wd:Q15304953 ;
wdt:P31 wd:Q5 ;
wdt:P31 ?instanceOf .
?item schema:description ?description .
FILTER (LANG(?description) = "en")
?item wdt:P106 ?occupation .
?occupation rdfs:label ?occupationLabel .
FILTER (LANG(?occupationLabel) = "en")
?occupation schema:description ?occupation_description .
FILTER (LANG(?occupation_description) = "en")
?item wdt:P569 ?dateOfBirth .
OPTIONAL { ?item wdt:P570 ?dateOfDeath }
?item wdt:P19 ?placeOfBirth .
?placeOfBirth rdfs:label ?placeOfBirthLabel .
FILTER (LANG(?placeOfBirthLabel) = "en")
?placeOfBirth schema:description ?placeOfBirth_description .
FILTER (LANG(?placeOfBirth_description) = "en")
}
LIMIT 100