Which highest period's element is platinum?
CREATE TABLE table_name_19 (period INTEGER, element VARCHAR)
SELECT MAX(period) FROM table_name_19 WHERE element = "platinum"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_19 (period INTEGER, element VARCHAR) Question: Which highest period's element is platinum? [/INST] SELECT MAX(period) FROM table_name_19 WHERE element = "platinum" </s>