What is the total capacity of venues that opened in 1999?
CREATE TABLE table_name_15 (capacity VARCHAR, opened VARCHAR)
SELECT COUNT(capacity) FROM table_name_15 WHERE opened = "1999"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_15 (capacity VARCHAR, opened VARCHAR) Question: What is the total capacity of venues that opened in 1999? [/INST] SELECT COUNT(capacity) FROM table_name_15 WHERE opened = "1999" </s>