baseball card is the parent category of which collection category?
Entity
m.0b2v21
T206
class entity
interests.collection_category m.01pq1w
interests.collection_category interests.collection_category
Collection category Baseball card
none none
interests.collection_category.parent_category
Parent category
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 :interests.collection_category . 
VALUES ?x1 { :m.01pq1w } 
?x0 :interests.collection_category.parent_category ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND interests.collection_category (JOIN interests.collection_category.parent_category m.01pq1w))