question: Did M1 , M2 , M3 , and M4 found M0 's employee 's employer
query: SELECT count(*) WHERE {
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
  ?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  M1 ns:organization.organization_founder.organizations_founded ?x0 .
  M2 ns:organization.organization_founder.organizations_founded ?x0 .
  M3 ns:organization.organization_founder.organizations_founded ?x0 .
  M4 ns:organization.organization_founder.organizations_founded ?x0
  }