question: Was a Canadian film editor whose country of nationality employed M0 M1
query: SELECT count(*) WHERE {
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
  M1 a ns:film.editor .
  M1 ns:people.person.nationality ?x0 .
  M1 ns:people.person.nationality ns:m.0d060g
  }