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_name_39 ( rank INTEGER, built VARCHAR, building VARCHAR )

### Question ###
What is the sum of Rank with a build year earlier than 2007 for the howard johnson hotel bucharest?

### Accurate SQL ###

SELECT SUM(rank) FROM table_name_39 WHERE built < 2007 AND building = "howard johnson hotel bucharest"