-DESCRIPTION ::= '(' 'description' [ MTEXT-OR-GETTEXT | nil] ')'
-VARIABLE-LIST ::= '(' 'variable' VARIABLE-DECLARATION * ')'
-COMMAND-LIST ::= '(' 'command' COMMAND-DECLARATION * ')'
-TITLE ::= '(' 'title' TITLE-TEXT ')'
-
-VARIABLE-DECLARATION ::=
- '(' VAR-NAME [ [ MTEXT-OR-GETTEXT | nil ] VALUE VALUE-CANDIDATE * ]')'