How many season 4 appearances are there by Mrs. Jennifer Knight?
CREATE TABLE table_26240046_1 (season_4 INTEGER, character VARCHAR)
SELECT MIN(season_4) FROM table_26240046_1 WHERE character = "Mrs. Jennifer Knight"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_26240046_1 (season_4 INTEGER, character VARCHAR) Question: How many season 4 appearances are there by Mrs. Jennifer Knight? [/INST] SELECT MIN(season_4) FROM table_26240046_1 WHERE character = "Mrs. Jennifer Knight" </s>