question: Did a British Chinese male person 's employer employ M0
query: SELECT count(*) WHERE {
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
  ?x1 a ns:people.person .
  ?x1 ns:people.person.gender ns:m.05zppz .
  ?x1 ns:people.person.nationality ns:m.07ssc .
  ?x1 ns:people.person.nationality ns:m.0d05w3
  }