question: Was a cinematographer 's sibling 's Swedish sibling 's spouse M2
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.0d0vqn .
  ?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
  ?x1 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x2 .
  ?x2 a ns:film.cinematographer .
  FILTER ( ?x0 != ?x1 ) .
  FILTER ( ?x1 != ?x2 ) .
  FILTER ( M2 != ?x0 ) .
  M2 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x0
  }