def METHOD_NAME(contraction):
    match = contraction.group(0)
    first_char = match[0]
    expanded_contraction = (
        CONTRACTION_MAP.get(match)
        if CONTRACTION_MAP.get(match)
        else CONTRACTION_MAP.get(match.lower())
    )
    expanded_contraction = first_char + expanded_contraction[1:]
    return expanded_contraction