user: Question: What is the location for Yemen in 1994?
Columns: ['Perpetrator', 'Year', 'Location', 'Country', 'Killed']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Unek, William', '1954 1957', 'Mahagi Malampaka', 'Belgian Congo Tanganyika', '21 36']
SQL:

assistant: SELECT "Location" FROM "Table" WHERE "Year" = '1994' AND "Country" = 'Yemen';