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 "2015–16 Haier T20 Cup"): The Haier Q8 T20 CUP 2015-2016 is the Twelve season of the National T20 Cup in Pakistan, sponsored by Haier.
Relevant evidence: No