CREATE TABLE table_67216 ("Year" FLOAT, "Award" TEXT, "Category" TEXT, "Title" TEXT, "Result" TEXT)

What Category has a Result of Nominated, Year of 2006, and the Title of Pierrepoint?
SELECT "Category" FROM table_67216 WHERE "Result" = 'nominated' AND "Year" = '2006' AND "Title" = 'pierrepoint'
SELECT "Category" FROM "table_67216" WHERE "Result" = 'nominated' AND "Title" = 'pierrepoint' AND "Year" = '2006'