What is the run time for the episode with 7.9 million viewers?
CREATE TABLE table_2108684_1 (run_time VARCHAR, viewers__in_millions_ VARCHAR)
SELECT run_time FROM table_2108684_1 WHERE viewers__in_millions_ = "7.9"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_2108684_1 (run_time VARCHAR, viewers__in_millions_ VARCHAR) Question: What is the run time for the episode with 7.9 million viewers? [/INST] SELECT run_time FROM table_2108684_1 WHERE viewers__in_millions_ = "7.9" </s>