What is the track whent the vocal percussionist is unknown?
CREATE TABLE table_28715942_5 (track VARCHAR, vocal_percussionist VARCHAR)
SELECT track FROM table_28715942_5 WHERE vocal_percussionist = "unknown"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_28715942_5 (track VARCHAR, vocal_percussionist VARCHAR) Question: What is the track whent the vocal percussionist is unknown? [/INST] SELECT track FROM table_28715942_5 WHERE vocal_percussionist = "unknown" </s>