How many different episode numbers are there for the episodes directed by Sheri Elwood?
CREATE TABLE table_27155243_3 (total__number VARCHAR, directed_by VARCHAR)
SELECT COUNT(total__number) FROM table_27155243_3 WHERE directed_by = "Sheri Elwood"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_27155243_3 (total__number VARCHAR, directed_by VARCHAR) Question: How many different episode numbers are there for the episodes directed by Sheri Elwood? [/INST] SELECT COUNT(total__number) FROM table_27155243_3 WHERE directed_by = "Sheri Elwood" </s>