instruction:
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.
question:
Passage: About 75% of the population is employed in subsistence agriculture upon Swazi Nation Land (SNL). In contrast with the commercial farms, Swazi Nation Land suffers from low productivity and investment. This dual nature of the Swazi economy, with high productivity in textile manufacturing and in the industrialised agricultural TDLs on the one hand, and declining productivity subsistence agriculture (on SNL) on the other, may well explain the country's overall low growth, high inequality and unemployment.
answer:
Where does the population get 75% of its income?


question:
Passage: In early 12th-century al-Andalus, the Arabian philosopher, Ibn Tufail (Abubacer), wrote discussions on materialism in his philosophical novel, Hayy ibn Yaqdhan (Philosophus Autodidactus), while vaguely foreshadowing the idea of a historical materialism.
answer:
When was Ibn Tufail born?


question:
Passage: The first Madressa established in North America, Al-Rashid Islamic Institute, was established in Cornwall, Ontario in 1983 and has graduates who are Hafiz (Quran) and Ulama. The seminary was established by Mazhar Alam under the direction of his teacher the leading Indian Tablighi scholar Muhammad Zakariya Kandhlawi and focuses on the traditional Hanafi school of thought and shuns Salafist / Wahabi teachings. Due to its proximity to the US border city of Messina the school has historically had a high ratio of US students. Their most prominent graduate Shaykh Muhammad Alshareef completed his Hifz in the early 1990s then went on to deviate from his traditional roots and form the Salafist organization the AlMaghrib Institute.
answer:

 When was the last madrasa started in North America?