question: Did a film editor that M1 , M2 , and M3 were founded by and M4 and M5 were founded by found M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:organization.organization_founder.organizations_founded M1 .
  ?x0 ns:organization.organization_founder.organizations_founded M2 .
  ?x0 ns:organization.organization_founder.organizations_founded M3 .
  ?x0 ns:organization.organization_founder.organizations_founded M4 .
  ?x0 ns:organization.organization_founder.organizations_founded M5 .
  ?x0 ns:organization.organization_founder.organizations_founded M6
  }