who directed the episode that 6.3 million u.s. viewers saw?
CREATE TABLE table_27811555_1 (directed_by VARCHAR, us_viewers__millions_ VARCHAR)
SELECT directed_by FROM table_27811555_1 WHERE us_viewers__millions_ = "6.3"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_27811555_1 (directed_by VARCHAR, us_viewers__millions_ VARCHAR) Question: who directed the episode that 6.3 million u.s. viewers saw? [/INST] SELECT directed_by FROM table_27811555_1 WHERE us_viewers__millions_ = "6.3" </s>