Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_12 (losses VARCHAR, team VARCHAR, goals_for VARCHAR)

### Question ###
How many times has the Cornwall HC team, that has scored more than 18 goals, lost ?

### Accurate SQL ###

SELECT COUNT(losses) FROM table_name_12 WHERE team = "cornwall hc" AND goals_for > 18