SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/previousWork> <http://dbpedia.org/resource/Waterfall_(album)> . ?x <http://dbpedia.org/property/label> ?uri . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Album>}
What is the label of the album whose previous work is Waterfall?
SELECT DISTINCT ?h WHERE { ?o property:previous_work resource:Waterfall_(album) . ?o property:label ?h . ?o rdf:type ontology:Album }
Brain, Metromedia
The labels of the album whose previous work is Waterfall are [Brain, Metromedia].
The album whose previous work was Waterfall is called [Brain, Metromedia].