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.

Ex Input:
Passage: In 1634, the Mughal emperor extended his hospitality to the English traders to the region of Bengal, and in 1717 completely waived customs duties for the trade. The company's mainstay businesses were by then cotton, silk, indigo dye, saltpetre, and tea. The Dutch were aggressive competitors and had meanwhile expanded their monopoly of the spice trade in the Malaccan straits by ousting the Portuguese in 1640–41. With reduced Portuguese and Spanish influence in the region, the EIC and Dutch East India Company (VOC) entered a period of intense competition, resulting in the Anglo-Dutch Wars of the 17th and 18th centuries.

Ex Output:
What caused the Greeks to expand their spice trade in the Malaccan straits?


Ex Input:
Passage: Shell's primary business is the management of a vertically integrated oil company. The development of technical and commercial expertise in all stages of this vertical integration, from the initial search for oil (exploration) through its harvesting (production), transportation, refining and finally trading and marketing established the core competencies on which the company was founded. Similar competencies were required for natural gas, which has become one of the most important businesses in which Shell is involved, and which contributes a significant proportion of the company's profits. While the vertically integrated business model provided significant economies of scale and barriers to entry, each business now seeks to be a self-supporting unit without subsidies from other parts of the company.

Ex Output:
What is the least important business for Shell?


Ex Input:
Passage: When the Committee for Non-Violent Action sponsored a protest in August 1957, at the Camp Mercury nuclear test site near Las Vegas, Nevada, 13 of the protesters attempted to enter the test site knowing that they faced arrest. At a pre-arranged announced time, one at a time they stepped across the "line" and were immediately arrested. They were put on a bus and taken to the Nye County seat of Tonopah, Nevada, and arraigned for trial before the local Justice of the Peace, that afternoon. A well known civil rights attorney, Francis Heisler, had volunteered to defend the arrested persons, advising them to plead "nolo contendere", as an alternative to pleading either guilty or not-guilty. The arrested persons were found "guilty," nevertheless, and given suspended sentences, conditional on their not reentering the test site grounds.[citation needed]

Ex Output:

What was sponsored by Francis Heisler in August 1957?