What was the rating for the episode that had 5.90 million viewers? 
CREATE TABLE table_23730973_5 (rating VARCHAR, viewers__millions_ VARCHAR)
SELECT rating FROM table_23730973_5 WHERE viewers__millions_ = "5.90"
### Context: CREATE TABLE table_23730973_5 (rating VARCHAR, viewers__millions_ VARCHAR) ### Question: What was the rating for the episode that had 5.90 million viewers?  ### Answer: SELECT rating FROM table_23730973_5 WHERE viewers__millions_ = "5.90"