CREATE TABLE table_74559 ("\\u2193 Function / Genus \\u2192" TEXT, "Shigella" TEXT, "Salmonella" TEXT, "Yersinia" TEXT, "Escherichia" TEXT)

Tell me the shigella for yersinia yopb
SELECT "Shigella" FROM table_74559 WHERE "Yersinia" = 'yopb'
SELECT "Shigella" FROM "table_74559" WHERE "Yersinia" = 'yopb'