CREATE TABLE table_54811 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

What is the mean number of laps where Time/retired was a water leak and the grid number was bigger than 12?
SELECT AVG("Laps") FROM table_54811 WHERE "Time/Retired" = 'water leak' AND "Grid" > '12'
SELECT AVG("Laps") FROM "table_54811" WHERE "Grid" > '12' AND "Time/Retired" = 'water leak'