question: Was M2 founded by a employee of M0 and M1 , founded by M3 and M4 , and founded by M5 and M6
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  M2 ns:organization.organization.founders ?x0 .
  M2 ns:organization.organization.founders M3 .
  M2 ns:organization.organization.founders M4 .
  M2 ns:organization.organization.founders M5 .
  M2 ns:organization.organization.founders M6
  }