How many different set of candidates were there when the incumbent was david e. finley?
CREATE TABLE table_1346137_4 (candidates VARCHAR, incumbent VARCHAR)
SELECT COUNT(candidates) FROM table_1346137_4 WHERE incumbent = "David E. Finley"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1346137_4 (candidates VARCHAR, incumbent VARCHAR) Question: How many different set of candidates were there when the incumbent was david e. finley? [/INST] SELECT COUNT(candidates) FROM table_1346137_4 WHERE incumbent = "David E. Finley" </s>