用BeautifulSoup在并列标签完全相同怎样爬取第二个内容？

``` for houselist_div in houselist_divs:

    houselist_as = houselist_div.find_all('span',class_='withI')
    for i in range(len(houselist_as)):
        houselist = []

        houselist.append(houselist_as[0].get_text())

        houselist.append(houselist_as[1].get_text())

        house.append(houselist)

['裕华-裕东', '西美五洲大厦']
['裕华-裕东', '西美五洲大厦']
['新华-水上公园', '天河商务']
['新华-水上公园', '天河商务']
['新华-石房大厦', '鹿诚商务中心']
['新华-石房大厦', '鹿诚商务中心']

第一个:soul.a
第二个:soup.a.next_sibling
第三个:soup.a.next_sibling.next_sibling
……