CREATE TABLE table_78608 ("Letter" TEXT, "Pronunciation spelled free" TEXT, "Pronunciation spelled checked" TEXT, "Example spelled free" TEXT, "Example spelled checked" TEXT)

What is Example Spelled Free, when Example Spelled Checked is 'op / p/ ('on')'?
SELECT "Example spelled free" FROM table_78608 WHERE "Example spelled checked" = 'op /ɔp/ ("on")'
SELECT "Example spelled free" FROM "table_78608" WHERE "Example spelled checked" = 'op /ɔp/ ("on")'