def uralic_input_simplified_cyr(field, text):
    """
    Prepare a string from one of the query fields for subsequent
    processing: replace basic letters with all possible characters.
    (Cyrillic version)
    """
    if field not in ('wf', 'lex'):
        return text
    text = text.replace('а', '[аӑӓ]')
    text = text.replace('о', '[оӧөӫ]')
    text = text.replace('у', '[уӯӱӳўүұ]')
    text = text.replace('и', '[иӣӥії]')
    text = text.replace('е', '[еӗәӛєё]')
    text = text.replace('ы', '[ыӹ]')
    text = text.replace('г', '[гґғ]')
    text = text.replace('ж', '[жӝҗ]')
    text = text.replace('з', '[зӟҙ]')
    text = text.replace('к', '[кқҝҟҡ]')
    text = text.replace('н', '[нңҥ]')
    text = text.replace('с', '[сҫ]')
    text = text.replace('х', '[хҳ]')
    text = text.replace('ч', '[чӵҷҹ]')
    return text