CREATE TABLE table_16137 ("Sepal length" TEXT, "Sepal width" TEXT, "Petal length" TEXT, "Petal width" TEXT, "Species" TEXT)

Name the sepal length for sepal width of 2.8 and petal length of 5.1
SELECT "Sepal length" FROM table_16137 WHERE "Sepal width" = '2.8' AND "Petal length" = '5.1'
SELECT "Sepal length" FROM "table_16137" WHERE "Petal length" = '5.1' AND "Sepal width" = '2.8'