What is the {position} with the {MIN(age of candidacy)} whose {main regulatory text} is {Russian presidential referendum, 1991}  ?
Which job in Russia's 1991 presidential referendum had the lowest age requirement?
Which position in the Russian presidential referendum 1991 had the lowest age of candidacy?
SELECT ?y WHERE { ?y rdf:type ontology:position . ?y property:age_of_candidacy ?h . ?y property:main_regulatory_text resource:Russian_presidential_referendum,_1991 . }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q4164871>.

?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2998>.
?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj1.

?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P92> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q4127536> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q4164871 . ?ent wdt:P2998 ?obj . ?ent wdt:P92 wd:Q4127536. } ORDER BY ASC(?obj)LIMIT 5 
President of Russia