human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Home team, Home team score, Away team, Away team score, Venue, Crowd, Date
###Question: What is Essendon's home team that has an away crowd size larger than 19,491?
gpt
SELECT Away team FROM table WHERE Crowd > 19,491 AND Home team = essendon