the extinct ice-clad stratovolcano ukinrek maars in what classification is founded?
Entity Entity
m.07_9_ m.03t7h0
Volcano Maar
class entity
geography.mountain_type m.04_s8x
geography.mountain_type geography.mountain
Mountain type Ukinrek Maars
none none
geography.mountain_type.mountains_of_this_type
Mountains of this type
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 :geography.mountain_type . 
VALUES ?x1 { :m.04_s8x } 
?x0 :geography.mountain_type.mountains_of_this_type ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND geography.mountain_type (JOIN geography.mountain_type.mountains_of_this_type m.04_s8x))