The description of multilingual texts is made through multiple terminal elements that is multiple elements with content of #PCDATA. Multilingual elements get one of the additional language elements
<l1>,
<l2>,
<l3>,
<l4>,
<l10> to build an aggregate of terminal elements. These language elements provide an attribute
[l] where the language of this element can be specified. The content of the attribute
[l] have to be defined as two-letter lower-case symbols according to the
[Code for the representation of names of languages;ISO639::1988((E/F));;Part1;]