Table schema:
CREATE TABLE table_10477224_1 (sepal_length VARCHAR, sepal_width VARCHAR, petal_width VARCHAR)

Question: Name the sepal lengh when sepal width is 2.9 and petal width 1.3
SQL: SELECT sepal_length FROM table_10477224_1 WHERE sepal_width = "2.9" AND petal_width = "1.3"