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.

Input: Consider Input: Passage: This was also a period of alternatives to nightclubs, the warehouse party, acid house, rave and outdoor festival scenes of the late 1980s and early 1990s were havens for the latest trends in electronic dance music, especially house and its ever-more hypnotic, synthetic offspring techno and trance, in clubs like the infamous Warsaw Ballroom better known as Warsaw and The Mix where DJs like david padilla (who was the resident DJ for both) and radio. The new sound fed back into mainstream clubs across the country. The scene in SoBe, along with a bustling secondhand market for electronic instruments and turntables, had a strong democratizing effect, offering amateur, "bedroom" DJs the opportunity to become proficient and popular as both music players and producers, regardless of the whims of the professional music and club industries. Some of these notable DJs are John Benetiz (better known as JellyBean Benetiz), Danny Tenaglia, and David Padilla.

Output: Who was the Warsaw Ballroom's house JD?

Input: Consider Input: Passage: Contract law covers obligations established by agreement (express or implied) between private parties. Generally, contract law in transactions involving the sale of goods has become highly standardized nationwide as a result of the widespread adoption of the Uniform Commercial Code. However, there is still significant diversity in the interpretation of other kinds of contracts, depending upon the extent to which a given state has codified its common law of contracts or adopted portions of the Restatement (Second) of Contracts.

Output: What does contract law not cover?

Input: Consider Input: Passage: Because of his stammer, Albert dreaded public speaking. After his closing speech at the British Empire Exhibition at Wembley on 31 October 1925, one which was an ordeal for both him and his listeners, he began to see Lionel Logue, an Australian-born speech therapist. The Duke and Logue practised breathing exercises, and the Duchess rehearsed with him patiently. Subsequently, he was able to speak with less hesitation. With his delivery improved, the Duke opened the new Parliament House in Canberra, Australia, during a tour of the empire in 1927. His journey by sea to Australia, New Zealand and Fiji took him via Jamaica, where Albert played doubles tennis partnered with a black man, which was unusual at the time and taken locally as a display of equality between races.
Output: What was the name of the Duchess?