Definition: In this task, you are given triplets. Each triplet is in the form of [subject, predicate, object]. Your task is to generate proper sentence that utilizes these triples. The objective is to construct a sentence that (a) captures the facts specified in the triples and (b) is a well-formed sentence easily understandable by a human. All triple values need not be used directly in the sentence as long as the facts are adequately captured.
Input: [['Afonso Pena International Airport', 'CITY_SERVED', 'Curitiba'], ['Curitiba', 'COUNTRY', 'Brazil'], ['Curitiba', 'IS_PART_OF', 'Paraná (state)'], ['Curitiba', 'LEADER_NAME', 'Democratic Labour Party (Brazil)'], ['Curitiba', 'IS_PART_OF', 'South Region, Brazil']]

Afonso Pena International Airport serves Curitiba in the Parana State which is the South Region of Brazil. Curitiba is led by the Brazilian Democratic Labour Party.