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: The most precise timekeeping device of the ancient world was the water clock, or clepsydra, one of which was found in the tomb of Egyptian pharaoh Amenhotep I (15251504 BC). They could be used to measure the hours even at night, but required manual upkeep to replenish the flow of water. The Ancient Greeks and the people from Chaldea (southeastern Mesopotamia) regularly maintained timekeeping records as an essential part of their astronomical observations. Arab inventors and engineers in particular made improvements on the use of water clocks up to the Middle Ages. In the 11th century, Chinese inventors and engineers invented the first mechanical clocks driven by an escapement mechanism.

Output: What device was invented by the ancient Greeks?

Input: Consider Input: Passage: The formation of the party was formally announced at Sydney Town Hall on 31 August 1945. It took the name "Liberal" in honour of the old Commonwealth Liberal Party. The new party was dominated by the remains of the old UAP; with few exceptions, the UAP party room became the Liberal party room. The Australian Women's National League, a powerful conservative women's organisation, also merged with the new party. A conservative youth group Menzies had set up, the Young Nationalists, was also merged into the new party. It became the nucleus of the Liberal Party's youth division, the Young Liberals. By September 1945 there were more than 90,000 members, many of whom had not previously been members of any political party.

Output: Where was the formation of the UAP party officially announced?

Input: Consider Input: Passage: The Presbyterian Church in Vanuatu is the largest denomination in the country, with approximately one-third of the population of Vanuatu members of the church. The PCV was taken to Vanuatu by missionaries from Scotland. The PCV (Presbyterian Church of Vanuatu) is headed by a moderator with offices in Port Vila. The PCV is particularly strong in the provinces of Tafea, Shefa, and Malampa. The Province of Sanma is mainly Presbyterian with a strong Roman Catholic minority in the Francophone areas of the province. There are some Presbyterian people, but no organised Presbyterian churches in Penama and Torba, both of which are traditionally Anglican. Vanuatu is the only country in the South Pacific with a significant Presbyterian heritage and membership. The PCV is a founding member of the Vanuatu Christian Council (VCC). The PCV runs many primary schools and Onesua secondary school. The church is strong in the rural villages.
Output: With nearly one third of the population of Vanuatu members of the church, which church is the smallest denomination?