<LANGUAGE> represents the human language used within the file. It is mainly used to cause the tools to switch to an appropriate language.
This element follows ISO 639-1 two letter language codes ( Codes for the Representation of Names of Languages ). Mostly used codes are given in Most common language codes (alphabetical):

Most common language codes (alphabetical)
Code
Language
de
German
en
English
es
Spanish
fr
French
it
Italian
jp
Japanese
For an example, see 2.1. ADMIN-DATA .

Within context of:
Is context for:
Text