Table: chiefs_1988
Columns: week
date
opponent
result
attendance

Question: What was average attendance during week 15?
SQL: SELECT AVG("attendance") FROM chiefs_1988 WHERE "week" = 15

Question: What's the smallest week that had a result of t 17–17?
SQL: SELECT MIN("week") FROM chiefs_1988 WHERE "result" = 't 17–17'

Question: Who was the opponent in week 12?
SQL: SELECT "opponent" FROM chiefs_1988 WHERE "week" = 12