human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Letter, Pronunciation spelled free, Pronunciation spelled checked, Example spelled free, Example spelled checked
###Question: What is Example Spelled Free, when Example Spelled Checked is "op /ɔp/ ("on")"?
gpt
SELECT Example spelled free FROM table WHERE Example spelled checked = op /ɔp/ ("on")