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: [['Chinon B3', 'CONSTRUCTION_START', '01.10.1980'], ['Chinon B3', 'COMMERCIAL_OPERATION', '04.03.1987']]

The start of the construction of the unit that's been in commercial operation since 04.03.1987 was in 01.10.1980.