How often does a train leave sealdah?
CREATE TABLE table_12095519_1 (frequency VARCHAR, origin VARCHAR)
SELECT frequency FROM table_12095519_1 WHERE origin = "Sealdah"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_12095519_1 (frequency VARCHAR, origin VARCHAR) Question: How often does a train leave sealdah? [/INST] SELECT frequency FROM table_12095519_1 WHERE origin = "Sealdah" </s>