Question: Who opposed Marty Meehan in each election?
SQL: SELECT "Opponent" FROM "1-1341522-24" WHERE "Incumbent" = 'Marty Meehan';

Question: Who are the opponents in Massachusetts5 district?
SQL: SELECT "Opponent" FROM "1-1341522-24" WHERE "District" = 'Massachusetts5';

Question: What parties are represented in Massachusetts4 district?
SQL: SELECT "Party" FROM "1-1341522-24" WHERE "District" = 'Massachusetts4';

Question: Who is the incumbent in district Massachusetts7?
SQL: SELECT "Incumbent" FROM "1-1341522-24" WHERE "District" = 'Massachusetts7';