You will be given a definition of a task first, then some input of the task.
In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Passage: Born in Aleksinac, Peric debuted for the first team of Radnicki Nis at the age of 18. He made 6 Serbian First League caps for the next season. After Radnicki relegated to the Serbian League East, Peric spent some period as a loaned player with local club Sinelic. Returning in the club, he was mostly used as a reserve choice for experienced Zoran Vaskovic until the 201213 season, when got a chance from the 2nd fixture of the competition making his Serbian SuperLiga debut. He spent the rest of half-season as a first goalkeeper, and was nominated for the best player of the half-season by the fans choice. Later, after Aleksandar Kesic joined the club in the winter break off-season, Peric moved on the bench. He also played several matches before the end of season. Later, he was out of the team mostly time until the end of contact with Radnicki, and spent mostly time as a loaned player in other clubs until 2015. In summer 2016, Peric returned in his home club.
Link Information: Aleksinac () is a town and municipality located in the Nisava District of the southern Serbia. According to 2011 census, the town has a population of 17,978 inhabitants, Answer: 17,978
Output:
What is the population of the city where Peric was born?