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_26 ( opponent VARCHAR, game VARCHAR, location_attendance VARCHAR, date VARCHAR )

### Question ###
Who is the opponent of game 54, which was in Los Angeles and was before day 18?

### Accurate SQL ###

SELECT opponent FROM table_name_26 WHERE location_attendance = "los angeles" AND date < 18 AND game = 54