How many incumbents are there in Pennsylvania 5?
CREATE TABLE table_2668401_12 (incumbent VARCHAR, district VARCHAR)
SELECT COUNT(incumbent) FROM table_2668401_12 WHERE district = "Pennsylvania 5"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_2668401_12 (incumbent VARCHAR, district VARCHAR) Question: How many incumbents are there in Pennsylvania 5? [/INST] SELECT COUNT(incumbent) FROM table_2668401_12 WHERE district = "Pennsylvania 5" </s>