Question: How many municipalities are in the area, sometimes referred to as metro area, greater area, commuter belt or conurbation of the capital and largest city of the Brazilian state of Paraná?
Sentence (from "Metropolitan area"): A metropolitan area, sometimes referred to as a metro area, greater area, commuter belt or conurbation, is a region consisting of a densely populated urban core and its less-populated surrounding territories, sharing industry, infrastructure, and housing.
Relevant evidence: Yes