Definition: 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.
Input: The following year, when Philip Graves, the Constantinople (modern Istanbul) correspondent of The Times, exposed The Protocols as a forgery, The Times retracted the editorial of the previous year.
Output:
A Constantinople correspondent of The Times exposed what anti-Semitic document as a forgery?