question: Was M3 written by and edited by a cinematographer that was employed by M1 and founded a production company
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  ?x0 ns:organization.organization_founder.organizations_founded ?x1 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x1 a ns:film.production_company .
  M3 ns:film.film.edited_by ?x0 .
  M3 ns:film.film.written_by ?x0
  }