what is the currency sub-unit of mauritanian ouguiya currency?
Entity
m.030bms
Khoums
class entity
business.currency_sub_unit m.023c2n
business.currency_sub_unit finance.currency
Currency sub-unit Mauritanian ouguiya
none none
business.currency_sub_unit.currency
Currency
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :business.currency_sub_unit . 
VALUES ?x1 { :m.023c2n } 
?x0 :business.currency_sub_unit.currency ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND business.currency_sub_unit (JOIN business.currency_sub_unit.currency m.023c2n))