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: [['A.S. Gubbio 1910', 'LEAGUE', 'Serie D'], ['Italy', 'CAPITAL', 'Rome'], ['Italy', 'LEADER', 'Sergio Mattarella'], ['A.S. Gubbio 1910', 'GROUND', 'Italy'], ['Serie D', 'CHAMPIONS', 'S.S. Robur Siena']]

AS Gubbio 1910 are located in Italy and play in Serie D whose champions are currently SS Robur Siena. The leader of Italy is Sergio Mattarella and the capital city is Rome.