How many challenge leaders were there of the games won by virginia (87-79)?
CREATE TABLE table_29535057_4 (challenge_leader VARCHAR, winner VARCHAR)
SELECT COUNT(challenge_leader) FROM table_29535057_4 WHERE winner = "Virginia (87-79)"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_29535057_4 (challenge_leader VARCHAR, winner VARCHAR) Question: How many challenge leaders were there of the games won by virginia (87-79)? [/INST] SELECT COUNT(challenge_leader) FROM table_29535057_4 WHERE winner = "Virginia (87-79)" </s>