Question: What private railway company is based in an Italian city that had a population of 326,799 as of 2015?
Sentence (from "Ferrotramviaria"): Based in Bari, in the Apulia region, it manages the "Ferrovie del Nord Barese" network, composed by the Bari–Barletta railway and the Bari metropolitan railway service.
Relevant evidence: Yes