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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 row_col_maker(app, fromdocname, all_needs, need_info, need_key, make_ref=False, ref_lookup=False, prefix=''):
 """ Creates and returns a column. :param app: current sphinx app :param fromdocname: current document :param all_needs: Dictionary of all need objects :param need_info: need_info object, which stores all related need data :param need_key: The key to access the needed data from need_info :param make_ref: If true, creates a reference for the given data in need_key :param ref_lookup: If true, it uses the data to lookup for a related need and uses its data to create the reference :param prefix: string, which is used as prefix for the text output :return: column object (nodes.entry) """

    row_col = nodes.entry()
    para_col = nodes.paragraph()

    if need_key in need_info and need_info[need_key] is not None:
        if not isinstance(need_info[need_key], (list, set)):
            data = [need_info[need_key]]
        else:
            data = need_info[need_key]

        for index, datum in enumerate(data):
            link_id = datum
            link_part = None

            if need_key in ['links', 'back_links']:
                if '.' in datum:
                    link_id = datum.split('.')[0]
                    link_part = datum.split('.')[1]

            datum_text = prefix + datum
            text_col = nodes.Text(datum_text, datum_text)
            if make_ref or ref_lookup:
                try:
                    ref_col = nodes.reference("", "")
                    if not ref_lookup:
                        ref_col['refuri'] = app.builder.get_relative_uri(fromdocname, need_info['docname'])
                        ref_col['refuri'] += "#" + datum
                    else:
                        temp_need = all_needs[link_id]
                        ref_col['refuri'] = app.builder.get_relative_uri(fromdocname, temp_need['docname'])
                        ref_col['refuri'] += "#" + temp_need["id"]
                        if link_part is not None:
                            ref_col['refuri'] += '.' + link_part

                except KeyError:
                    para_col += text_col
                else:
                    ref_col.append(text_col)
                    para_col += ref_col
            else:
                para_col += text_col

            if index + 1 < len(data):
                para_col += nodes.emphasis("; ", "; ")

    row_col += para_col

    return row_col