What is the name of the opponent when anastasia pivovarova was the partner?
CREATE TABLE table_name_15 (opponents VARCHAR, partner VARCHAR)
SELECT opponents FROM table_name_15 WHERE partner = "anastasia pivovarova"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_15 (opponents VARCHAR, partner VARCHAR) Question: What is the name of the opponent when anastasia pivovarova was the partner? [/INST] SELECT opponents FROM table_name_15 WHERE partner = "anastasia pivovarova" </s>