Part 1. Definition
Generate a correct and concise answer for the question based on the words in the context.
Part 2. Example
Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School.
Question : What was Isaac Nicola's city of birth?
Answer: Havana
Explanation: According to context Issac Nicola's city of birth is Havana. Hence this is a correct output.
Part 3. Exercise
Context : The Battle of Vescera (modern Biskra in Algeria) was fought in 682 or 683 between the Berbers of king Caecilius and their Byzantine allies from the Exarchate of Carthage against an Umayyad Arab army under Uqba ibn Nafi (the founder of Kairouan).
Question : The point in time of Battle of Vescera was when?
Answer:
682