what is the tv parental guidelines rating system?
Entity Entity Entity Entity Entity Entity Entity
m.030p0gp m.030p0gv m.030p0gc m.030p0gj m.030p0dr m.030p0fk m.030p0hl
TV 14 TV MA TV G TV PG TV Y TV Y7 TV Y7 FV
class entity
tv.tv_rating m.06zttrv
tv.tv_rating tv.tv_rating_system
TV Rating TV Parental Guidelines
none none
tv.tv_rating.tv_rating_system
TV Rating System
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 :tv.tv_rating . 
VALUES ?x1 { :m.06zttrv } 
?x0 :tv.tv_rating.tv_rating_system ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND tv.tv_rating (JOIN tv.tv_rating.tv_rating_system m.06zttrv))