On 2 April 2015, 3 Iranian officers were killed by unidentified gunmen in the city of Hamidiyeh, about 25 kilometers  west of the city of Ahvaz. Additional 2 casualties were sustained by the Iranian security on 26 October 2015. In early June 2016, a Sunni group known as Suqour al-Ahvaz  blew up the Bou-Ali-Sina Petrochemical Complex in Bandar-E Mahshahr, Khuzestan. On July 2016, on two occasions Ahwazi militants of al-Farouq Brigade of the Ahwazi National Resistance blew up pipelines in the Johar as-Sabaa' district. Reportedly, members of the al-Farouq Brigade managed to escape after the operation, despite efforts of the security forces and Revolutionary Guards to track down the offenders. According to Algemeiner, the group responsible for the 11 and 17 July attacks was Suqour al-Ahvaz . In August 2016, Iran executed 3 men, charged with terror attack which led to the death of 3 Iranian policemen in Khuzestan province back in April 2015. On October 2016, a young girl was killed, when Iranian security forces attempted to arrest her father, wanted for security reasons.

Question: What happened first, the killing of Iranian officers in Hamidiyeh, or the casualties sustained by Iranian security?
Answer: killing of Iranian officers in Hamidiyeh

Question: Which happened last, the Ahwazi National Resistance blowing up pipelines, or the Sunni group blowing up the Petrochemical Complex?
Answer: Ahwazi National Resistance blew up

Question: How many attacks did Suquor al-Ahvaz carry out in July?
Answer: 2

Question: What happened first: 3 Iranian officers were killed or a young girl was killed?
Answer: 3 Iranian officers were killed

Question: What happened second: 3 Iranian officers were killed or a young girl was killed?
Answer: a young girl was killed

Question: How many years do these events span?
Answer: 1.5

Question: How many months do these events span?
Answer: 18

Question: What event happened first, a young girl being killed, or 3 Iranian officers being killed by unidentified gunmen?
Answer: On 2 April 2015, 3

Question: What event happened later, 3 Iranian officers being killed, or a young girl being killed?
Answer: On October 2016, a young

Question: How many months passed between the deaths of the Iranian officers in Hamidiyeh and the deaths of Iranian security people?
Answer: 7

Question: What happened first, the explosion at Bou-Ali-Sina Petrochemical Complex or the explosions in the Johar as-Sabaa' district?
Answer: Bou-Ali-Sina Petrochemical Complex

Question: How many days passed between the blowing up of pipelines in the Johar as-Sabaa' district?
Answer: 6

Question: How many months passed between the explosion at the Bou-Ali-Sina Petrochemical Complex and the executions of those charged with terror attack?
Answer: 2