Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_13677808_1 ( environment VARCHAR, overall__average_ VARCHAR )

### Question ###
What is the environment rating of the country with an overall average rating of 4.7?

### Accurate SQL ###

SELECT environment FROM table_13677808_1 WHERE overall__average_ = "4.7"