@staticmethod<EOL><INDENT>def _language_exclusions(stem: LanguageStemRange,<EOL>exclusions: List[ShExDocParser.LanguageExclusionContext]) -> None:<DEDENT>
for excl in exclusions:<EOL><INDENT>excl_langtag = LANGTAG(excl.LANGTAG().getText()[<NUM_LIT:1>:])<EOL>stem.exclusions.append(LanguageStem(excl_langtag) if excl.STEM_MARK() else excl_langtag)<EOL><DEDENT>
languageExclusion = '-' LANGTAG STEM_MARK?