def is_ortho_tier(tier_name):
    """Return true is the tier_name matches an ortho trans.

    i.e. is containing either "ipu", "trans", "trs", "toe" or "ortho" in its name.

    :param tier_name: (str)
    :returns: (bool)

    """
    tier_name = tier_name.lower()
    if "trans" in tier_name:
        return True
    if "trs" in tier_name:
        return True
    if "toe" in tier_name:
        return True
    if "ortho" in tier_name:
        return True
    if "ipu" in tier_name:
        return True

    return False