Question: What brotherhood was blamed for the 1981 Azbakiyah bombing?

<P0-S0> The 2011 Aktobe Bombing was a terrorist attack in the city of Aktobe, Kazakhstan on May 17, 2011. <P0-S1>  The attacker entered the headquarters of the Kazakhstani security services in the oblast and set off a suicide bomb, killing himself and injuring two others. <P0-S2>  Initially, the bombing was blamed on "organized crime" in what was considered the first mafia-related suicide bombing in history. <P0-S3>  However, Kazakhstani officials eventually conceded that the attack was probably linked to Islamic extremists in the oil-rich province. <P0-S4>  The attack marked the opening of a violent summer in Kazakhstan's west, during which multiple attacks claimed the lives of a combined 19 people. <SEP> <P1-S0> The December 2013 Mansoura bombing occurred on the morning of Tuesday, 24 December 2013 in the Nile Delta city of Mansoura in Egypt. <P1-S1>  The target was the city's security directorate building that was partially collapsed after the attack. <P1-S2>  At least 16 people were killed, mostly policemen, while more than a hundred were injured, according to the Ministry of Interior. <P1-S3>  No one immediately claimed responsibility for the bombing but Prime Minister Hazem Al Beblawi, on behalf of the interim government, was quick to blame the Muslim Brotherhood of being behind the attack, labeling it a "terrorist organization" for the first time since the ouster of Mohamed Morsi on 3 July earlier this year. <P1-S4>  Egyptian authorities also stated that the militants received logistical support from Hamas. <P1-S5>  Ansar Bait al-Maqdis, an Al-Qaeda-linked group in the Sinai Peninsula, released an online statement claiming responsibility for the blast but the government sounded determined that the Muslim Brotherhood was behind it and intensified its crackdown on the organization. <P1-S6>  The incident is now widely believed by many to be a turning point in the nation's history as the future of both the Islamists and Egypt's stability remain shadowed and unclear with several violent clashes and other bombings taking place across the country following its ban. <SEP> <P2-S0> Hafez al-Assad (Arabic: حافظ الأسد‎ ‎ "Ḥāfiẓ al-ʾAsad ", ] ] ; 6 October 1930 – 10 June 2000) was a Syrian statesman, politician, and general who was President of Syria from 1971 to 2000. <P2-S1>  He was also Prime Minister from 1970 to 1971, as well as Regional Secretary of the Regional Command of the Syrian Regional Branch of the Arab Socialist Ba'ath Party and Secretary General of the National Command of the Ba'ath Party from 1970 to 2000. <SEP> <P3-S0> The 1981 Azbakiyah bombing (Arabic: تفجير الأزبكية‎ ‎ ) was a terrorist car bomb attack that rocked the densely populated al-Azbakiyah neighborhood of central Damascus in Syria on 29 November 1981. <P3-S1>  The explosion, which took place in front of a school in Baghdad Street, close to a complex of intelligence agencies, destroyed three five-story apartment buildings, and killed more than 200 civilians and military men. <P3-S2>  The attack was blamed on the Muslim Brotherhood which was waging an insurrection against the government of Hafez al-Assad at the time.