What material is made with a rounded, plain edge?
CREATE TABLE table_1307572_1 (composition VARCHAR, edge VARCHAR)
SELECT composition FROM table_1307572_1 WHERE edge = "Rounded, plain"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1307572_1 (composition VARCHAR, edge VARCHAR) Question: What material is made with a rounded, plain edge? [/INST] SELECT composition FROM table_1307572_1 WHERE edge = "Rounded, plain" </s>