human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Game, Date, Opponent, Result, Heat points, Opponents, Record, Streak
###Question: What is the average Heat Points, when Result is "Loss", when Game is greater than 72, and when Date is "April 21"?
gpt
SELECT AVG Heat points FROM table WHERE Result = loss AND Game > 72 AND Date = april 21