PREFIX core: <http://vivoweb.org/ontology/core#>
PREFIX bibo: <http://purl.org/ontology/bibo/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

CONSTRUCT {
     ?location rdfs:label ?locationName .
} WHERE {
     PERSON_URI core:authorInAuthorship ?authorship . 
     ?authorship core:linkedInformationResource ?publication .
     ?publication bibo:presentedAt ?event .
     ?event core:hasGeographicLocation ?location .
     ?location rdfs:label ?locationName .
}