I don't know what that has to do with this question, but.... 'sj' is like 'sh' and is said with the tongue (like in English) 'kj' is said with the tongue on (or nearly on) the roof of the mouth, and is said with the back of the mouth. Search on you tube for Norwegian sounds 'sj' and 'kj'. there are a few videos that explain it. Some Norwegians dialects don't distinguish between them. Others have 3 or 4 'sh' sounds that are very difficult for non-natives to distinguish.