Table: election_results_1978
Columns: district
incumbent
party
first_elected
result
candidates

Question: How many sitting politicians were originally elected in 1972?
SQL: SELECT COUNT("incumbent") FROM election_results_1978 WHERE "first_elected" = 1972

Question: In the Georgia 6 district, what is the elected party?
SQL: SELECT "party" FROM election_results_1978 WHERE "district" = 'Georgia 6'

Question: In the race involving Billy Lee Evans as the seated Representative, was he elected again?
SQL: SELECT "result" FROM election_results_1978 WHERE "incumbent" = 'Billy Lee Evans'

Question: Which district has Ronald "bo" Ginn as the seated Representative?
SQL: SELECT "district" FROM election_results_1978 WHERE "incumbent" = 'Ronald "Bo" Ginn'

Question: How many parties are there in races involving Dawson Mathis?
SQL: SELECT COUNT("party") FROM election_results_1978 WHERE "incumbent" = 'Dawson Mathis'