[mod] google: support for showing the answer source url

    # results --> answer

    answer_list = eval_xpath(dom, '//div[contains(@class, "LGOjhe")]')

    if answer_list:

        answer_list = [_.xpath("normalize-space()") for _ in answer_list]

        results.append({'answer': ' '.join(answer_list)})

    else:

        logger.debug("did not find 'answer'")

    for item in answer_list:

        results.append(

            {

                'answer': item.xpath("normalize-space()"),

                'url': (eval_xpath(item, '../..//a/@href') + [None])[0],

            }

        )

    # parse results