question: Did M2 employ a Swedish spouse of M1 and employ M3
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.0d0vqn .
  ?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 M1 .
  FILTER ( ?x0 != M1 ) .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person M3
  }