How many teams have 21 tries for?
CREATE TABLE table_15467476_3 (points_difference VARCHAR, tries_for VARCHAR)
SELECT COUNT(points_difference) FROM table_15467476_3 WHERE tries_for = "21"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15467476_3 (points_difference VARCHAR, tries_for VARCHAR) Question: How many teams have 21 tries for? [/INST] SELECT COUNT(points_difference) FROM table_15467476_3 WHERE tries_for = "21" </s>