What is {significant event} of {Charles I of Austria} that is {position held} is {king} ?
While Charles I of Austria was king, what significant event happened?
What significant event happened to Charles I of Austria while king?
SELECT ?e WHERE { ?l property:position_held resource:king . resource:Charles_I_of_Austria property:significant_event ?l . ?l property:significant_event ?e }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q51068> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P793> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P39> <http://wikidata.dbpedia.org/resource/Q12097>
} 

SELECT ?obj WHERE { wd:Q51068 p:P793 ?s . ?s ps:P793 ?obj . ?s pq:P39 wd:Q12097 }