You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
The_Times

Context:
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.

Question:
A Constantinople correspondent of The Times exposed what anti-Semitic document as a forgery?

The Protocols