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_15425 ( "Team 1" text, "Agg." text, "Team 2" text, "1st leg" text, "2nd leg" text )

### Question ###
What was the score of the second leg with an agg of 4-6?

### Accurate SQL ###

SELECT "2nd leg" FROM table_15425 WHERE "Agg." = '4-6'