def lemmatize(text):
    m = Mystem()
    lemm_list = m.lemmatize(text)
    lemm_text = "".join(lemm_list)

    return lemm_text


def clear_text(text):
    clear_text = re.sub(r'[^a-zA-Z ]', ' ', text)
    clear_text = clear_text.split()
    clear_text = " ".join(clear_text)
    return clear_text