CREATE TABLE table_12649 ("Perpetrator" TEXT, "Year" TEXT, "Location" TEXT, "Country" TEXT, "Killed" TEXT)

What is the location for Yemen in 1994?
SELECT "Location" FROM table_12649 WHERE "Year" = '1994' AND "Country" = 'yemen'
SELECT "Location" FROM "table_12649" WHERE "Country" = 'yemen' AND "Year" = '1994'