Who directed the episode with 4.82 million U.S. viewers?
CREATE TABLE table_25851971_1 (directed_by VARCHAR, us_viewers__million_ VARCHAR)
SELECT directed_by FROM table_25851971_1 WHERE us_viewers__million_ = "4.82"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25851971_1 (directed_by VARCHAR, us_viewers__million_ VARCHAR) Question: Who directed the episode with 4.82 million U.S. viewers? [/INST] SELECT directed_by FROM table_25851971_1 WHERE us_viewers__million_ = "4.82" </s>