def parse_one_column_table(data_table):
    """Parse tables with only one column"""
    output_list = []
    data_rows = data_table.find_all("tr")[1:]
    for data_row in data_rows:
        data_cells = data_row.find_all("td")
        for data_cell in data_cells:
            try:
                output_list.append(data_cell.text.strip())
            except AttributeError:
                continue
    return ", ".join(output_list)