Instructions: This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.
Input: Passage: In 1946, the Al Saada party was founded in Muhammar and demanded the independence of Khuzestan. The Iranian army took advantage of its conflicts with the Communist Party, Toudeh, to commit massacres. Later in Arabistan, new independent or autonomist parties came into being: the "Arabistan Liberation Front" in 1956; the "National Front for the Liberation of Arabistan" and the "Arab Gulf" in 1960; In 1967, the "Arabistan Liberation Front" became the "Al Ahwaz Liberation Front". Sporadic Arab insurgency in Khuzestan continued through the 1950s, but reduced in the final decade of Pahlavy rule .
Question: When did the Arabistan Liberation Fron change names?
Output:
date