This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

[Q]: Passage: Phonetically in some languages, such as Navajo, aspiration of stops tends to be realised as voiceless velar airflow; aspiration of affricates is realised as an extended length of the frication.
[A]: What is realized as an extended length of the airflow?

[Q]: Passage: Funding for private schools is generally provided through student tuition, endowments, scholarship/voucher funds, and donations and grants from religious organizations or private individuals. Government funding for religious schools is either subject to restrictions or possibly forbidden, according to the courts' interpretation of the Establishment Clause of the First Amendment or individual state Blaine Amendments. Non-religious private schools theoretically could qualify for such funding without hassle, preferring the advantages of independent control of their student admissions and course content instead of the public funding they could get with charter status.
[A]: What body would determine that funding for course content is forbidden?

[Q]: Passage: The landscapes of Thuringia are quite diverse. The far north is occupied by the Harz mountains, followed by the Goldene Aue, a fertile floodplain around Nordhausen with the Helme as most important river. The north-west includes the Eichsfeld, a hilly and sometimes forested region, where the Leine river emanates. The central and northern part of Thuringia is defined by the 3000 km wide Thuringian Basin, a very fertile and flat area around the Unstrut river and completely surrounded by the following hill chains (clockwise from the north-west): Dun, Hainleite, Windleite, Kyffhauser, Hohe Schrecke, Schmucke, Finne, Ettersberg, Steigerwald, Thuringian Forest, Horselberge and Hainich. Within the Basin the smaller hill chains Fahner Hohe and Heilinger Hohen. South of the Thuringian Basin is the Land's largest mountain range, marked by the Thuringian Forest in the north-west, the Thuringian Highland in the middle and the Franconian Forest in the south-east. Most of this range is forested and the Groer Beerberg (983 m) is Thuringia's highest mountain. To the south-west, the Forest is followed up by Werra river valley, dividing it from the Rhon Mountains in the west and the Grabfeld plain in the south. Eastern Thuringia, commonly described as the area east of Saale and Loquitz valley, is marked by a hilly landscape, rising slowly from the flat north to the mountainous south. The Saale in the west and the Weie Elster in the east are the two big rivers running from south to north and forming densely settled valleys in this area. Between them lies the flat and forested Holzland in the north, the flat and fertile Orlasenke in the middle and the Vogtland, a hilly but in most parts non-forested region in the south. The far eastern region (east of Weie Elster) is the Osterland or Altenburger Land along Pleie river, a flat, fertile and densely settled agricultural area.
[A]:
Where are the Harz mountains hidden?