question: Was a company 's Chinese male Canadian employee M1
query: SELECT count(*) WHERE {
  ?x0 a ns:business.employer .
  M1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
  M1 ns:people.person.gender ns:m.05zppz .
  M1 ns:people.person.nationality ns:m.0d05w3 .
  M1 ns:people.person.nationality ns:m.0d060g
  }