What is the rank of the airport with freight ( metric tonnes ) of 255121?
CREATE TABLE table_13836704_6 (rank VARCHAR, freight___metric_tonnes__ VARCHAR)
SELECT rank FROM table_13836704_6 WHERE freight___metric_tonnes__ = 255121
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_13836704_6 (rank VARCHAR, freight___metric_tonnes__ VARCHAR) Question: What is the rank of the airport with freight ( metric tonnes ) of 255121? [/INST] SELECT rank FROM table_13836704_6 WHERE freight___metric_tonnes__ = 255121 </s>