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.

Example Input: Passage: After the Peace of Westphalia, several border territories were assigned to the United Provinces. They were federally-governed Generality Lands (Generaliteitslanden). They were Staats-Brabant (present North Brabant), Staats-Vlaanderen (present Zeeuws-Vlaanderen), Staats-Limburg (around Maastricht) and Staats-Oppergelre (around Venlo, after 1715).
Example Output: In 1715 what was assigned to the United Provinces?

Example Input: Passage: The eleven prefecture-level divisions of Zhejiang are subdivided into 90 county-level divisions (36 districts, 20 county-level cities, 33 counties, and one autonomous county). Those are in turn divided into 1,570 township-level divisions (761 towns, 505 townships, 14 ethnic townships, and 290 subdistricts). Hengdian belongs to Jinhua, which is the largest base of shooting films and TV dramas in China. Hengdian is called "China's Hollywood".
Example Output: How many unprefecture-level divisions of Zhejiang are there?

Example Input: Passage: Spectre has received mixed reviews, with many reviewers either giving the film highly positive or highly negative feedback. Many critics praised the film's opening scene, action sequences, stuntwork, cinematography and performances from the cast. In some early reviews, the film received favourable comparisons with its predecessor, Skyfall. Rotten Tomatoes sampled 274 reviews and judged 64% of the critiques to be positive, saying that the film "nudges Daniel Craig's rebooted Bond closer to the glorious, action-driven spectacle of earlier entries, although it's admittedly reliant on established 007 formula." On Metacritic, the film has a rating of 60 out of 100, based on 48 critics, indicating "mixed or average reviews". Audiences polled by CinemaScore gave the film an average grade of "A−" on an A+ to F scale.
Example Output:
What film received all positive reviews?