what was the title of the episode 21a?
CREATE TABLE table_17810099_3 (title VARCHAR, episode__number VARCHAR)
SELECT title FROM table_17810099_3 WHERE episode__number = "21a"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_17810099_3 (title VARCHAR, episode__number VARCHAR) Question: what was the title of the episode 21a? [/INST] SELECT title FROM table_17810099_3 WHERE episode__number = "21a" </s>