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: [['10.', 'SECRETARY_OF_STATE', 'John Costigan'], ['John Costigan', 'PRIME_MINISTER', 'Thompson'], ['[TABLECONTEXT]', '[TITLE]', 'Secretary of State for Canada'], ['[TABLECONTEXT]', 'NUMBER', '10.']]

PM Thompson's secretary of state was John Costigan.