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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 _parse_from_table(html_chunk, what):
 """ Go thru table data in `html_chunk` and try to locate content of the neighbor cell of the cell containing `what`. Returns: str: Table data or None. """

    ean_tag = html_chunk.find("tr", fn=must_contain("th", what, "td"))

    if not ean_tag:
        return None

    return get_first_content(ean_tag[0].find("td"))