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: [['Athens International Airport', 'CITY_SERVED', 'Athens'], ['Athens', 'COUNTRY', 'Greece'], ['Greece', 'DEMONYM', 'Greeks'], ['Greece', 'LEADER_NAME', 'Alexis Tsipras'], ['Greece', 'LEADER_NAME', 'Nikos Voutsis']]

Athens International Airport serves the city of Athens, in Greece. Two of the leaders of which are Alexis Tsipras and Nikos Voutsis. The demonym of the inhabitants of Greece is Greeks.