question: Did a film distributor that M3 and M4 were employed by and M1 and M2 founded employ M5 and M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_distributor .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M5 .
  ?x0 ns:business.employer.employees/ns:business.employment_tenure.person M6 .
  ?x0 ns:organization.organization.founders M1 .
  ?x0 ns:organization.organization.founders M2
  }