Complex sentence: The Hauptschulabschluss may be awarded to students, who graduate from a Hauptschule or Abendhauptschule and may also be awarded to students, who leave the Realschule, Gymnasium or the Gesamtschule after having successfully completed 9th or 10th grade (depending on State of Germany).
Split into simpler sentences: The Hauptschulabschluss may be awarded to students who graduate from a Hauptschule or Abendhauptschule. It may also be awarded to students who leave the Realschule, Gymnasium or the Gesamtschule after having successfully completed 9th or 10th grade (depending on the State of Germany).