Instructions: Given a paragraph, your job is to generate a question that can be answered from the passage. The answer to your question should be a single entity, person, time, etc. that can be extracted from the passage.
Input: Ergänzungsschulen are secondary or post-secondary (non-tertiary) schools, which are run by private individuals, private organizations or rarely, religious groups and offer a type of education which is not available at public schools. Most of these schools are vocational schools. However, these vocational schools are not part of the German dual education system. Ergänzungsschulen have the freedom to operate outside of government regulation and are funded in whole by charging their students tuition fees.
Output:
What are private secondary schools in Germany called?