user: Question: What is Country, when Killed is "100.9", and when Year is greater than 1939.9?
Columns: ['Perpetrator', 'Date', 'Year', 'Location', 'Country', 'Killed', 'Injured']
Types: ['text', 'text', 'real', 'text', 'text', 'real', 'text']
Sample row: ['Woo Bum-Kon , 27', '04.26 April 26/27', 1982.0, 'Uiryeong', 'South Korea', 56.0, '34–37']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Killed" = 100.9 AND "Year" > 1939.9;