Question: the suicide of Mohamed Bouazizi in Sidi Bouzid acted as a catalyst for protests that began in which year ?
Sentence (from "Sidi Bouzid"): Sidi Bouzid (Tunisian Arabic: سيدي بوزيد‎ "  "), sometimes called "Sidi Bou Zid" or "Sīdī Bū Zayd", is a city in Tunisia and is the capital of Sidi Bouzid Governorate in the centre of the country.
Relevant evidence: No