sentence: When we arrived in Barcelona , we went by taxi to the hotel which my brother had previously booked , and there we met with other relatives : my brother , his wife , my nephews and , of course , my niece ( the bride ) .
modified: When we arrived in Barcelona we went by taxi to the hotel , which my brother had previously booked , and there we met with other relatives : my brother , his wife , my nephews and of course my niece ( the bride ) .
transformation: PUNCT, PUNCT, PUNCT, PUNCT