canadian national parks protects what sites?
Entity Entity
m.01p2h7 m.027w0t
Pacific Rim National Park Reserve Gulf Islands National Park Reserve
class entity
protected_sites.protected_site m.02hj_s_
protected_sites.protected_site protected_sites.park_system
Protected Site Canadian National Parks
none none
protected_sites.protected_site.system
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 :protected_sites.protected_site . 
VALUES ?x1 { :m.02hj_s_ } 
?x0 :protected_sites.protected_site.system ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND protected_sites.protected_site (JOIN protected_sites.protected_site.system m.02hj_s_))