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', 'LEADER_NAME', 'Alexis Tsipras'], ['Greece', 'LEADER_NAME', 'Nikos Voutsis']]

Athens International Airport services Athens, Greece; led by Alexis Tsipras and Nikos Voutsis.