Table: election_results_1998_5
Columns: district
incumbent
party
first_elected
results
candidates

Question: Which incumbent was first elected in 1984?
SQL: SELECT "incumbent" FROM election_results_1998_5 WHERE "first_elected" = 1984

Question: When was the incumbent in the Tennessee 4 district first elected? 
SQL: SELECT "first_elected" FROM election_results_1998_5 WHERE "district" = 'Tennessee 4'

Question: Who are the candidates in the Tennessee 3 district election? 
SQL: SELECT "candidates" FROM election_results_1998_5 WHERE "district" = 'Tennessee 3'

Question: What year was Bob Clement first elected? 
SQL: SELECT MIN("first_elected") FROM election_results_1998_5 WHERE "incumbent" = 'Bob Clement'