CREATE TABLE table_9139 ("Brigade" TEXT, "Type" TEXT, "Pumpers" TEXT, "Tankers" FLOAT, "Slip-Ons" TEXT, "Cars" TEXT, "Hazmat" TEXT)

What is the Hazmat, when the Type is Rural, and when the number of Tankers is 1?
SELECT "Hazmat" FROM table_9139 WHERE "Type" = 'rural' AND "Tankers" = '1'
SELECT "Hazmat" FROM "table_9139" WHERE "Tankers" = '1' AND "Type" = 'rural'