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Captions
Countries ever participating in the International Olympiad in Linguistics (as of 2020)
Kraje, które kiedykolwiek uczestniczyły w Międzynarodowej Olimpiadzie Lingwistycznej (stan na 2020)
Страны когда-либо участвующие в Международной олимпиаде по лингвистике (по состоянию на 2020)
Länder, die irgendwann an der Internationalen Linguistikolympiade teilgenahmen (Stand 2020)