What is the total number of seats with gavin duffy in series 4?
CREATE TABLE table_name_13 (seat VARCHAR, series_4 VARCHAR)
SELECT COUNT(seat) FROM table_name_13 WHERE series_4 = "gavin duffy"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_13 (seat VARCHAR, series_4 VARCHAR) Question: What is the total number of seats with gavin duffy in series 4? [/INST] SELECT COUNT(seat) FROM table_name_13 WHERE series_4 = "gavin duffy" </s>