def get_unique_tokens(geneset_name):
    """
    Delimit the input `geneset_name` by "; ", and return a new string
    that includes only unique tokens delimited by "; ".
    """

    tokens = geneset_name.split("; ")
    uniq_tokens = []
    for t in tokens:
        if t not in uniq_tokens:
            uniq_tokens.append(t)

    return "; ".join(uniq_tokens)