name the railways that are in the network denver and rio grande western railroad.
Entity Entity
m.07nldg m.06mrdc
Durango and Silverton Narrow Gauge Railroad Cumbres and Toltec Scenic Railroad
class entity
rail.railway m.0c_4q
rail.railway rail.rail_network
Railway Denver and Rio Grande Western Railroad
none none
rail.railway.part_of_network
Part of network
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.railway . 
VALUES ?x1 { :m.0c_4q } 
?x0 :rail.railway.part_of_network ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND rail.railway (JOIN rail.railway.part_of_network m.0c_4q))