which sibling of kassandra is also a crown prince?
Entity
m.0h0_x
Paris
class entity class entity
theater.theater_character m.01j950 fictional_universe.sibling_relationship_of_fictional_characters m.01xh7
theater.theater_character fictional_universe.character_rank fictional_universe.sibling_relationship_of_fictional_characters opera.opera_character
Theater Character Crown prince Sibling Relationship (of Fictional Characters) kassandra
none none none none
fictional_universe.character_rank.characters_of_this_rank fictional_universe.fictional_character.siblings fictional_universe.fictional_character.siblings
Characters of This Rank Siblings Siblings
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 :theater.theater_character . 
VALUES ?x1 { :m.01j950 } 
?x2 :type.object.type :fictional_universe.sibling_relationship_of_fictional_characters . 
VALUES ?x3 { :m.01xh7 } 
?x1 :fictional_universe.character_rank.characters_of_this_rank ?x0 . 
?x0 :fictional_universe.fictional_character.siblings ?x2 . 
?x3 :fictional_universe.fictional_character.siblings ?x2 . 
FILTER ( ?x0 != ?x1 && ?x0 != ?x2 && ?x0 != ?x3 && ?x1 != ?x2 && ?x1 != ?x3 && ?x2 != ?x3  )
}
}
(AND theater.theater_character (AND (JOIN (R fictional_universe.character_rank.characters_of_this_rank) m.01j950) (JOIN fictional_universe.fictional_character.siblings (JOIN (R fictional_universe.fictional_character.siblings) m.01xh7))))