who was the first to reach the top of pyramid mountain?
Entity Entity
m.01_9s7 m.0hp2q7t
Conrad Kain George Kinney
class entity
geography.mountaineer m.052f7k
geography.mountaineer geography.mountain
Mountaineer Pyramid Mountain
none none
geography.mountaineer.first_ascents
First ascents
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.mountaineer . 
VALUES ?x1 { :m.052f7k } 
?x0 :geography.mountaineer.first_ascents ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND geography.mountaineer (JOIN geography.mountaineer.first_ascents m.052f7k))