what is the material for roller coaster surfrider?
Entity
m.02yjlh
Steel
class entity
amusement_parks.roller_coaster_material m.0ch0zy8
amusement_parks.roller_coaster_material amusement_parks.roller_coaster
Roller Coaster Material Surfrider
none none
amusement_parks.roller_coaster_material.roller_coasters
Roller Coasters
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 :amusement_parks.roller_coaster_material . 
VALUES ?x1 { :m.0ch0zy8 } 
?x0 :amusement_parks.roller_coaster_material.roller_coasters ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND amusement_parks.roller_coaster_material (JOIN amusement_parks.roller_coaster_material.roller_coasters m.0ch0zy8))