question: Who was a film producer 's German Italian male spouse 's male child 's spouse 's parent
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
  ?x1 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x2 .
  ?x2 ns:people.person.gender ns:m.05zppz .
  ?x2 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x3 .
  ?x3 ns:people.person.gender ns:m.05zppz .
  ?x3 ns:people.person.nationality ns:m.0345h .
  ?x3 ns:people.person.nationality ns:m.03rjj .
  ?x3 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x4 .
  ?x4 a ns:film.producer .
  FILTER ( ?x1 != ?x2 ) .
  FILTER ( ?x3 != ?x4 )
  }