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.
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Question: Passage: The innovative production techniques devised by post-punk producers such as Martin Hannett and Dennis Bovell during this period would become an important element of the emerging music, with studio experimentation taking a central role. A variety of groups that predated punk, such as Cabaret Voltaire and Throbbing Gristle, experimented with crude production techniques and electronic instruments in tandem with performance art methods and influence from transgressive literature, ultimately helping to pioneer industrial music. Throbbing Gristle's independent label Industrial Records would become a hub for this scene and provide it with its namesake.

Answer: Who avoided post-punk production?


Question: Passage: Turner Classic Movies also airs regularly scheduled weekly film blocks, which are periodically preempted for special themed month-long or seasonal scheduling events, such as the "31 Days of Oscar" film series in the month preceding the Academy Awards and the month-long "Summer Under the Stars" in August; all featured programming has their own distinctive feature presentation bumper for the particular scheduled presentation. The Essentials, currently hosted by Osborne and Sally Field as of 2015[update], is a weekly film showcase airing on Saturday evenings (with a replay on the following Sunday at 6:00 p.m. Eastern Time), which spotlights a different movie and contains a special introduction and post-movie discussion.

Answer: When does 15 Days of Oscar occur?


Question: Passage: The first HDTV transmissions in Europe, albeit not direct-to-home, began in 1990, when the Italian broadcaster RAI used the HD-MAC and MUSE HDTV technologies to broadcast the 1990 FIFA World Cup. The matches were shown in 8 cinemas in Italy and 2 in Spain. The connection with Spain was made via the Olympus satellite link from Rome to Barcelona and then with a fiber optic connection from Barcelona to Madrid. After some HDTV transmissions in Europe the standard was abandoned in the mid-1990s.

Answer:
When did the first SDTV transmissions happen in Europe?