1 title: //h3[contains(@class, 'entry-title')]
2 date: //abbr[@itemprop='datePublished']/@title
3 body: //div[@itemprop='articleBody']
6 test_url: http://www.kachiblog.com/2013/05/samsung-galaxy-s4-vs-samsung-galaxy.html
7 test_url: http://www.kachiblog.com/feed