Question: What is the military rank of the commanders of Regiment of Mounted Grenadiers?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { res:Regiment_of_Mounted_Grenadiers prop:notableCommanders ?x . ?x onto:militaryRank ?uri  . }