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_53 ( away_team VARCHAR, tie_no VARCHAR, home_team VARCHAR )

### Question ###
Who was the away team that played Northampton Town at home with a tie number of replay?

### Accurate SQL ###

SELECT away_team FROM table_name_53 WHERE tie_no = "replay" AND home_team = "northampton town"