Who's the opponent when Diegomar Markwell is the loss?
CREATE TABLE table_name_80 (opponent VARCHAR, loss VARCHAR)
SELECT opponent FROM table_name_80 WHERE loss = "diegomar markwell"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_80 (opponent VARCHAR, loss VARCHAR) Question: Who's the opponent when Diegomar Markwell is the loss? [/INST] SELECT opponent FROM table_name_80 WHERE loss = "diegomar markwell" </s>