Instructions: 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: Passage: The five most prevalent chains are Lotte, Hyundai, Shinsegae, Galleria, AK plaza. Lotte Department Store is the largest, operating more than 40 stores (include outlet, young plaza, foreign branches). Hyundai Department Store has about 14 stores (13dept, 1outlet), and there are 10 stores in Shinsegae. Shinsegae has 3 outlet store with Simon. Galleria has 5, AK has 5 stores. Galleriaeast and west is well known by luxury goods. These five department stores are known to people as representative corporations in the field of distirution in South Korea. From fashion items to electric appliances, people can buy various kinds of products. Every weekend, people are fond of going around these department stores, because their location is usually easy to visit. As of 2010 the Shinsegae department store in Centum City, Busan, is the largest department store in the world.
Output:
What department store chain operates the least stores?