This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Q: Chopin has figured extensively in Polish literature, both in serious critical studies of his life and music and in fictional treatments. The earliest manifestation was probably an 1830 sonnet on Chopin by Leon Ulrich. French writers on Chopin (apart from Sand) have included Marcel Proust and André Gide; and he has also featured in works of Gottfried Benn and Boris Pasternak. There are numerous biographies of Chopin in English (see bibliography for some of these).

A: An 1830 sonnet was written about Chopin by what man?
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Q: Israel has nine public universities that are subsidized by the state and 49 private colleges. The Hebrew University of Jerusalem, Israel's second-oldest university after the Technion, houses the National Library of Israel, the world's largest repository of Judaica and Hebraica. The Technion, the Hebrew University, and the Weizmann Institute consistently ranked among world's 100 top universities by the prestigious ARWU academic ranking. The Hebrew University of Jerusalem and Tel Aviv University are ranked among the world's top 100 universities by Times Higher Education magazine. Other major universities in the country include Bar-Ilan University, the University of Haifa, The Open University, and Ben-Gurion University of the Negev. Ariel University, in the West Bank, is the newest university institution, upgraded from college status, and the first in over thirty years. Israel's seven research universities (excluding the Open University) are consistently ranked among top 500 in the world.

A: How many public universities does Israel have?
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Q: The second approach to the problem took as its base the notion of class, and defines a set as a class which belongs to other classes, while a proper class is defined as a class which does not belong to other classes. Under the Zermelo–Fraenkel approach, the axioms impede the construction of a set of all sets which do not belong to themselves. In contrast, under the von Neumann approach, the class of all sets which do not belong to themselves can be constructed, but it is a proper class and not a set.

A:
What is a proper class?
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