What is {follows} of {European Union} and {inception}
What takes after the European Union and when was its initiation?
What follows the European Union and when was its inception?
SELECT ?u ?j WHERE { ?g property:inception ?u . . ?g property:follows ?j . resource:European_Union property:follows ?g }
select distinct ?dataprop1 ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q458> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P155> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?statement <http://www.wikidata.org/entity/P580> ?dataprop1 . } 
SELECT ?value1 ?obj WHERE { wd:Q458 p:P155 ?s . ?s ps:P155 ?obj . ?s pq:P571 ?value1 . }