what is the most recent electric locomotive class introduced?
Entity
m.0520m1_
SNCB Class 18
class literal
rail.electric_locomotive_class 0^^http://www.w3.org/2001/XMLSchema#int
rail.electric_locomotive_class type.datetime
Electric locomotive class 0
none argmax
rail.locomotive_class.introduced
Introduced
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 :rail.electric_locomotive_class . 
{
SELECT (MAX(?y1) AS ?x1)  WHERE { 
?y0 :type.object.type :rail.electric_locomotive_class . 
?y0 :rail.locomotive_class.introduced ?y1 . 
FILTER ( ?y0 != ?y1  )
}
}
?x0 :rail.locomotive_class.introduced ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(ARGMAX rail.electric_locomotive_class rail.locomotive_class.introduced)