Q: 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.
Passage: In the mainly Christian Indian state of Mizoram, the Presbyterian denomination is the largest denomination; it was brought to the region with missionaries from Wales in 1894. Prior to Mizoram, the Welsh Presbyterians (missionaries) started venturing into the north-east of India through the Khasi Hills (presently located within the state of Meghalaya in India) and established Presbyterian churches all over the Khasi Hills from the 1840s onwards. Hence there is a strong presence of Presbyterians in Shillong (the present capital of Meghalaya) and the areas adjoining it. The Welsh missionaries built their first church in Sohra (aka Cherrapunji) in 1846. Presbyterians participated in the mergers that resulted in the Church of North India and the Church of South India.Sohra
A:
During what year was the smallest the first Presbyterian church in Tainan