question: Was a employee of M0 , M1 , and M2 M4 's Spanish director
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M4 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
  ?x0 ns:people.person.nationality ns:m.06mkj
  }