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: [['United States', 'ETHNIC_GROUP', 'African Americans'], ['United States', 'LEADER_TITLE', 'President of the United States'], ['English language', 'SPOKEN_IN', 'Great Britain'], ['United States', 'LANGUAGE', 'English language'], ['A Wizard of Mars', 'COUNTRY', 'United States']]

A Wizard of Mars originates from the United States where English is spoken (as in Great Britain), and the leader is called the President. African Americans are one of the ethnic groups of the United States, where the capital city is Washington D.C.