import re


def __unzip_labels(label):
    """unzips a string with more than one word

    Parameters
    ----------
    label : tuple
        tuple or list of the text labels from the folder name

    Returns
    -------
    list
        splited labels as list of strings
    """
    labels = re.split('(?=[A-Z])', label)
    label = [label.lower() for label in labels]
    return label