What is the margin when periyakulam is the constituency?
CREATE TABLE table_22754491_1 (margin VARCHAR, constituency VARCHAR)
SELECT margin FROM table_22754491_1 WHERE constituency = "Periyakulam"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_22754491_1 (margin VARCHAR, constituency VARCHAR) Question: What is the margin when periyakulam is the constituency? [/INST] SELECT margin FROM table_22754491_1 WHERE constituency = "Periyakulam" </s>