What is the total number of semi-final losses for the Kitchener Rangers? 
CREATE TABLE table_17751942_4 (final_losses VARCHAR, Semi INTEGER, team VARCHAR)
SELECT MAX(Semi) - final_losses FROM table_17751942_4 WHERE team = "Kitchener Rangers"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_17751942_4 (final_losses VARCHAR, Semi INTEGER, team VARCHAR) Question: What is the total number of semi-final losses for the Kitchener Rangers?  [/INST] SELECT MAX(Semi) - final_losses FROM table_17751942_4 WHERE team = "Kitchener Rangers" </s>