what is the operator of trains arriving at 13.39 
CREATE TABLE table_18333678_2 (operator VARCHAR, arrival VARCHAR)
SELECT operator FROM table_18333678_2 WHERE arrival = "13.39"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18333678_2 (operator VARCHAR, arrival VARCHAR) Question: what is the operator of trains arriving at 13.39  [/INST] SELECT operator FROM table_18333678_2 WHERE arrival = "13.39" </s>