Question: What is Opponent, when Date is December 18, 1988?
SQL: SELECT "Opponent" FROM "2-15986322-1" WHERE "Date" = 'December 18, 1988';

Question: What is Attendance, when Opponent is Pittsburgh Steelers?
SQL: SELECT "Attendance" FROM "2-15986322-1" WHERE "Opponent" = 'Pittsburgh Steelers';

Question: What is the average Week, when Result is L 37–34?
SQL: SELECT AVG("Week") FROM "2-15986322-1" WHERE "Result" = 'L 37–34';