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: [['M4LE Carbine', 'COLT_MODEL_NO.', 'LE6921SP'], ['M4LE Carbine', 'BARREL_PROFILE', 'M4 HBAR'], ['M4 HBAR', 'BARREL_LENGTH', '10 in.']]

The barrel length for a cold model le6921sp is 10 in.