What is the {history of topic} and the {discoverer or inventor} of {Periodic_table} ?
What is the history and inventor's name of the Periodic table?
Who was the inventor and what is the history of the Periodic table?
SELECT ?a ?s WHERE { resource:periodic_table property:history_of_topic ?a . resource:periodic_table property:discoverer_or_inventor ?s }
 SELECT ?ans_1 ?ans_2 WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q10693> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2184> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?ans_1. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q10693> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P61> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?ans_2. } 
SELECT ?ans_1 ?ans_2 WHERE { wd:Q10693 wdt:P2184 ?ans_1 . wd:Q10693 wdt:P61 ?ans_2 }