Which chromosomes have an unknown property?
CREATE TABLE table_29871617_1 (name VARCHAR, property VARCHAR)
SELECT name FROM table_29871617_1 WHERE property = "Unknown"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_29871617_1 (name VARCHAR, property VARCHAR) Question: Which chromosomes have an unknown property? [/INST] SELECT name FROM table_29871617_1 WHERE property = "Unknown" </s>