human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Home (1st leg), Home (2nd leg), 1st Leg, 2nd leg, Aggregate
###Question: What was the score of the 2nd leg when the Belgrano played the first leg at home with a score of 2-1?
gpt
SELECT 2nd leg FROM table WHERE 1st Leg = 2-1 AND Home (1st leg) = belgrano