How many people were first elected when john roane was the incumbent?
CREATE TABLE table_2668243_25 (first_elected VARCHAR, incumbent VARCHAR)
SELECT COUNT(first_elected) FROM table_2668243_25 WHERE incumbent = "John Roane"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_2668243_25 (first_elected VARCHAR, incumbent VARCHAR) Question: How many people were first elected when john roane was the incumbent? [/INST] SELECT COUNT(first_elected) FROM table_2668243_25 WHERE incumbent = "John Roane" </s>