question: Did M2 employ M3 and M4 , employ M5 and M6 , and employ M0 's Canadian founder
query: SELECT count(*) WHERE {
  ?x0 ns:organization.organization_founder.organizations_founded M0 .
  ?x0 ns:people.person.nationality ns:m.0d060g .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
  M2 ns:business.employer.employees/ns:business.employment_tenure.person M6
  }