what is the lake that has the largest catchment area?
Entity
m.01mlk
Caspian Sea
class literal
geography.lake 0^^http://www.w3.org/2001/XMLSchema#int
geography.lake type.float
Lake 0
none argmax
geography.lake.catchment_area
Catchment area
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.lake . 
{
SELECT (MAX(?y1) AS ?x1)  WHERE { 
?y0 :type.object.type :geography.lake . 
?y0 :geography.lake.catchment_area ?y1 . 
FILTER ( ?y0 != ?y1  )
}
}
?x0 :geography.lake.catchment_area ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(ARGMAX geography.lake geography.lake.catchment_area)