What is {worked at} of {grandchildren} of {Jan Smets} ?
What is Jan Smets's grandchildren's works?
What is worked  of grandchildren of Jan Smets ?
SELECT ?l WHERE { resource:Jan_Smets property:relative ?n . ?n property:employer ?l }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q19334606> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1038>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P108> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q19334606 wdt:P1038 ?X . ?X wdt:P108 ?answer}
European Central Bank Bank for International Settlements Katholieke Universiteit Leuven University of Groningen Ghent University