External Context سياق خارجي
http://m.arabi21.com/story/931389/%D8%A7%D9%84%D8%AF%D8%AE%D9%88%D9%84-%D8%A5%D9%84%D9%89-%D8%A7%D9%84%D9%86%D9%8A%D9%88%D9%84%D9%8A%D8%A8%D8%B1%D8%A7%D9%84%D9%8A%D8%A9-%D9%84%D9%8A%D8%B3-%D9%83%D8%A7%D9%84%D8%AE%D8%B1%D9%88%D8%AC-%D9%85%D9%86%D9%87%D8%A7#author_911