Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
Input: Passage: As he was opposed to violence, Ferhat kept himself distant from the Algerian War, and continued to try to act as an intermediary to the opposing sides. However, after the French intensified the war, in 1956, 18 months after the Algerian War of Independence against French rule began, Ferhat joined the Front de Liberation Nationale (FLN). His diplomatic skills were utilized by the FLN, as he was sent on missions sponsored by their ally, President Habib Bourguiba of Tunisia. His visits through Latin America, Europe, and the Middle East were intended to drum up support for their cause. In 1957, he was appointed as the FLN delegate to the United Nations. 1958 saw him attending the North African Conference in Tunis, and in March he communicated an appeal to The Vatican for their assistance in creating peace. After the collapse of the Fourth Republic and the coming to power of Charles de Gaulle, the hopes for an independent Algeria increased. This however did not end the fighting and on September 18 of that year, the Provisional Government of the Algerian Republic (GPRA) was created. His political standing in Algeria and reputation as a moderate nationalist, acceptable to the West, helped him become president of this provisional Algerian nationalist government-in-exile on September 18, 1958 when it was created. The position of President was largely as a figurehead and a diplomat, as most of the power was wielded by the cabinet; however in time a number of Asian and African nations recognized the government. In October 1958 an attempt was made by both Abbas and de Gaulle at ending the war with a meeting and intended cease fire were dashed on the inability of the parties to agree on a neutral location. By September 16, 1959, de Gaulle was softening as he offered self-determination to be decided by a referendum four years after a cease fire. This plan was generally accepted; unfortunately, there were a few substantial sticking points. By 1960, Abbas was becoming frustrated with the West as he lashed out at the United Kingdom and the United States for supplying weaponry to France. With talks breaking down in June 1960, Abbas turned to the east and by September was visiting with Communist China, and the Soviet Union, where he was welcomed warmly. Abbas reassured the West by stating that his new alliances were opportunism, when he stated that
Link Information: The Algerian War, also known as the Algerian War of Independence or the Algerian Revolution ( '; '; or ) was fought between France and the Algerian National Liberation Front ( FLN) from 1954 to 1962 Answer: 2
Output:
How long had the Algerian War been occurring before the French intensified it in 1956?