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_28 (constructor VARCHAR, grid VARCHAR, laps VARCHAR, time_retired VARCHAR)

### Question ###
What was the constructor when the laps were larger than 54, and the time/retired was +1 lap on a grid of 20?

### Accurate SQL ###

SELECT constructor FROM table_name_28 WHERE laps > 54 AND time_retired = "+1 lap" AND grid = 20