question: Did a British screenwriter 's employer 's employee 's spouse write and edit M0 and M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M0 .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1 .
  ?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 ?x1 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x2 .
  ?x2 ns:business.employer.employees/ns:business.employment_tenure.person ?x3 .
  ?x3 a ns:film.writer .
  ?x3 ns:people.person.nationality ns:m.07ssc .
  FILTER ( ?x0 != ?x1 )
  }