CREATE TABLE table_56488 ("Fire Class" TEXT, "Geometric Symbol" TEXT, "Intended Use" TEXT, "Mnemonic" TEXT, "compatibility" TEXT)

What is the compatibility for the Mnemonic d for 'dynamite'?
SELECT "compatibility" FROM table_56488 WHERE "Mnemonic" = 'd for "dynamite'
SELECT "compatibility" FROM "table_56488" WHERE "Mnemonic" = 'd for "dynamite'