question: Who was a German cinematographer that M2 , M3 , and M4 were written by and M5 and M6 were written by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.cinematographer .
  ?x0 a ns:people.person .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:film.writer.film M3 .
  ?x0 ns:film.writer.film M4 .
  ?x0 ns:film.writer.film M5 .
  ?x0 ns:film.writer.film M6 .
  ?x0 ns:people.person.nationality ns:m.0345h
  }