Which Surface has a Tournament of st. petersburg , russia?
CREATE TABLE table_name_53 (surface VARCHAR, tournament VARCHAR)
SELECT surface FROM table_name_53 WHERE tournament = "st. petersburg , russia"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_53 (surface VARCHAR, tournament VARCHAR) Question: Which Surface has a Tournament of st. petersburg , russia? [/INST] SELECT surface FROM table_name_53 WHERE tournament = "st. petersburg , russia" </s>