How many different pairs of candidates were there for the district first elected in 1988?
CREATE TABLE table_19753079_12 (candidates VARCHAR, first_elected VARCHAR)
SELECT COUNT(candidates) FROM table_19753079_12 WHERE first_elected = 1988
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_19753079_12 (candidates VARCHAR, first_elected VARCHAR) Question: How many different pairs of candidates were there for the district first elected in 1988? [/INST] SELECT COUNT(candidates) FROM table_19753079_12 WHERE first_elected = 1988 </s>