Which Surface has a Semifinalist of stefan edberg thomas muster?
CREATE TABLE table_name_98 (surface VARCHAR, semifinalists VARCHAR)
SELECT surface FROM table_name_98 WHERE semifinalists = "stefan edberg thomas muster"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_98 (surface VARCHAR, semifinalists VARCHAR) Question: Which Surface has a Semifinalist of stefan edberg thomas muster? [/INST] SELECT surface FROM table_name_98 WHERE semifinalists = "stefan edberg thomas muster" </s>