When the value world rank is 7, what is the rank?
CREATE TABLE table_21109892_1 (rank VARCHAR, value_world_rank VARCHAR)
SELECT rank FROM table_21109892_1 WHERE value_world_rank = "7"
### Context: CREATE TABLE table_21109892_1 (rank VARCHAR, value_world_rank VARCHAR) ### Question: When the value world rank is 7, what is the rank? ### Answer: SELECT rank FROM table_21109892_1 WHERE value_world_rank = "7"