What was the average size of the crowd for matches held at Corio Oval?
CREATE TABLE table_name_28 (crowd INTEGER, venue VARCHAR)
SELECT AVG(crowd) FROM table_name_28 WHERE venue = "corio oval"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_28 (crowd INTEGER, venue VARCHAR) Question: What was the average size of the crowd for matches held at Corio Oval? [/INST] SELECT AVG(crowd) FROM table_name_28 WHERE venue = "corio oval" </s>