def assign_new_id(article_id, collection_dict):
    """Little function to make unique id for articles that are used by multiple questions"""
    extra_ids = ["-0", "-1", "-2", "-3", "-5"]
    for i in extra_ids: 
        new_id = article_id + i
        if new_id not in collection_dict:
            return new_id
    raise ValueError("Out of IDS!")