user: Question: Name the sepal width for I.virginica with petal length of 5.1
Columns: ['Sepal length', 'Sepal width', 'Petal length', 'Petal width', 'Species']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['5.1', '3.5', '1.4', '0.2', 'I.setosa']
SQL:

assistant: SELECT "Sepal width" FROM "Table" WHERE "Species" = 'I.virginica' AND "Petal length" = '5.1';