According to the 2012 edition of the CIA World Factbook, 70-75% of Turkeys population consists of ethnic Turks, with Kurds accounting for 18% and other minorities between 7 and 12%. According to Milliyet, a 2008 report prepared for the National Security Council (Turkey) of Turkey by academics of three Turkish universities in eastern Anatolia suggested that there are approximately 55 million ethnic Turks, 9.6 million Kurds, 3 million Zazas, 2.5 million Circassians, 2 million Bosniaks, 500,000-1.3 million Albanians, 1,000,000 Georgians, 870,000 Arabs, 600,000, Pomaks, 80,000 Laz people, 60,000 Armenians, 25,000 Assyrian people, 20,000 Jews, and 15,000 Greeks, 500 Yazidis living in Turkey.
Question: Which groups had fewer than 19000 people in Turkey?
Answer: Greeks | Yazidis