context: In 1941 he became chairman of Catholic university students. Moro joined the Christian Democratic Party in 1945 and was elected as one of its representatives to the Constitutional Assembly in 1946 and to the Parliament in 1948, until his death. He was Minister of Justice from 1955 to 1957, Minister of Education from 1957 to 1959, and first became Prime Minister from 1963 to 1968, and again in 1974. Moro was also four times Minister of Foreign Affairs and once Minister of the Interior.
question: How many times did Aldo Moro serve as Foreign Minister?
answers.text: four