Question: How many city-based franchises are featured in the competition of which the "2016–17 Cool & Cool Present Jazz National T20 Cup" was the thirteenth season?
Sentence (from "National Twenty20 Cup"): Established in 2005, it is one of the world's oldest Twenty20 cricket leagues and was replaced by the Pakistan Super League in 2016, which currently features 5 city-based franchises from within Pakistan.
Relevant evidence: Yes