question: Was a Canadian male art director that married M3 , M4 , and M5 a male person 's parent
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.0d060g .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M3 .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M4 .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M5 .
  ?x1 a ns:people.person .
  ?x1 ns:people.person.gender ns:m.05zppz .
  FILTER ( ?x0 != M3 ) .
  FILTER ( ?x0 != M4 ) .
  FILTER ( ?x0 != M5 )
  }