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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def generate_semantic_data_key(used_semantic_keys):
 """ Create a new and unique semantic data key :param list used_semantic_keys: Handed list of keys already in use :rtype: str :return: semantic_data_id """

    semantic_data_id_counter = -1
    while True:
        semantic_data_id_counter += 1
        if "semantic data key " + str(semantic_data_id_counter) not in used_semantic_keys:
            break
    return "semantic data key " + str(semantic_data_id_counter)